JP2001256649A - Disk recording method, disk recorder and information- recording medium - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problems in which the prediction of the actual recording time is difficult and the decrease in recording speed is brought about since the detection of the failure due to the stain like a fingerprint is made in the time of recording, and also prediction of the processing time cannot be made for the recording of data which have real-time nature, such as AV data. SOLUTION: Arrangement is made in such a manner that the stain is inspected before the recording, and the recording area is assigned to the area on an optical disk medium, where the stain is not stuck to.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recordable disk having a sector structure and a disk recording / reproducing apparatus, and more particularly to a method of recording data on a disk.

[0002]

2. Description of the Related Art A typical optical disk having a sector structure is an optical disk. In recent years, the density and the capacity have been increased, and it is important to ensure the reliability. Therefore, the disc is stored in a cartridge so that the user does not directly touch the disc. However, from the viewpoint of convenience, it is also possible to take out the disk from the cartridge and perform recording and reproduction.

[0003] There is a DVD-RAM as a standard in which a disk medium can be taken out of a cartridge and a disk can be recorded and reproduced in a state where the disk is stored in the cartridge or in a state where the disk is alone. The standard is DVD Specifications fo
r Rewritable Disk, PART1, P
HYSICAL SPECIFICATIONS (Ve
rsion 1.0, July 1997).

FIG. 1 shows a disk structure. FIG. 1 is an explanatory view of an optical disk medium 1. In a disk-shaped optical disk medium, tracks are formed on concentric circles, and finely divided sectors are formed on each track. Absolute addresses called physical sector addresses are added to the heads of all these sectors.

FIG. 2 shows a sector management system. Tracks are numbered from 0 to T, and each track is composed of 10 sectors. Access to each sector is performed using this track number.

As shown in FIG. 1, a control information area 4 and a data recording area 5 are arranged on the optical disc medium 1, and data recording and reproduction are performed on the data recording area 5.

FIG. 20 is a diagram showing the configuration of the control information area 4 and the data recording area 5. The control information area 4 is arranged on the innermost and outermost sides of the optical disk medium 1, and is detected from the disk control information 6 in which parameters and the like necessary for accessing the disk are recorded, and from the data recording area. Defect management information 7 for managing the defective sector that has been recorded. The address of the defective sector and the address of the replacement sector are recorded as the defect management information 7 as a data structure in a list format.

When writing data to the optical disk medium 1 and a write error is detected in the data recording area 5, replacement processing is performed. That is, the sector in which the error has occurred is set as a defective sector, an address is registered in the defect management information 7 of the control information area 4, and an alternative sector is prepared and data is written, thereby avoiding writing failure.

FIG. 8 shows that when the number of sectors in each track is 5, the track number 20 is multiplied by the track number 21.
Sectors 101, 102, 103, 106, 107, 10
8 shows a state in which dirt spreads over six sectors.

FIG. 22 shows how data is recorded in such an area. FIG. 22 shows an example in which the data file 10 having a size of 10 sectors is recorded continuously from the sector 100 to the sector 109. The number in the box of the data recording area 5 indicates the sector number, and is hatched. The box is the dirty sector shown in FIG.

At the time of recording data on the stain-attached portion, since a write error is detected, the above-described replacement process is performed. In the recording example in FIG. 9, data cannot be recorded in the hatched sectors. Therefore, the data in each sector is stored in six spare sectors 101 to 108 which are spare spare areas prepared in the data recording area 5. Be recorded.

FIG. 21 shows the defect management information 7 at this time.
Write error detected as defective sector address 6
The address of the sector and the address of a replacement sector in which data is recorded as a substitute sector for the defective sector are recorded.

[0013]

When the optical disk medium 1 is directly touched by hand, the optical disk medium 1 is stained by fingerprints, and when data is written, the possibility of occurrence of a writing error increases. .

As described above, when writing fails, writing is performed to a substitute sector located at a position different from the target sector. Fingerprints that are even millimeters spread over a very wide area, so the number of alternative sectors is enormous, occupying a large area of the entire disk area, and the disk use efficiency is significantly reduced. Further, since the defect management information for managing the substitute sector becomes large, it takes time to search the sector address list, which causes a reduction in the recording / reproducing processing speed.

In general, the replacement sector is arranged at the end of the data recording area as a spare area, and since it always involves a seek, it takes an access time to cause a reduction in the recording / reproducing speed.

Furthermore, when recording AV data (Audio Visual data; temporally continuous video and audio data) having real-time properties, the replacement of defective sectors is performed during recording, so that a significant reduction in speed occurs. However, the image may be interrupted.

As described above, in the conventional method, detection of dirt adhering to the optical disk medium is performed at the time of recording, so that the recording / reproducing processing speed is reduced, and at the time of real-time data recording, the recording processing time is predicted in advance. There is a problem that can not be.

In view of the above problems, the present invention performs a stain inspection before recording in consideration of a case where a disc stain is attached,
It is an object of the present invention to provide a highly reliable disk recording method and disk recording apparatus by allocating a recording area to an area free from dirt.

[0019]

According to a first aspect of the present invention, there is provided a disk recording method comprising: forming a concentric track or a spiral track; and dividing the track into a plurality of sectors. A disk recording method for recording data on a sector basis with respect to a disk medium on which data can be recorded and reproduced on a sector basis, wherein (1) an amplitude value of a signal at a head for recording and reproducing data is a reference value; Performing a dirt inspection to determine that there is dirt when the state has continued for a predetermined time in a state smaller than the value;
(2) reporting the dirt detection area.

In order to solve this problem, the disk recording method according to the second aspect of the present invention, in addition to the features of the first aspect, further comprises: It is characterized in that a value calculated from the maximum value of the signal measured over the region is used.

In order to solve this problem, a disc recording method according to a third aspect of the present invention, in addition to the features of the first aspect, further comprises: It is characterized in that a value calculated from the average value of signals measured over the region is used.

In order to solve this problem, a disc recording method according to a fourth aspect of the present invention, in addition to the features of the first aspect, further comprises the step of: It is characterized by using recorded values.

In order to solve this problem, according to a fifth aspect of the present invention, there is provided a disk recording method, wherein a concentric or spiral track is formed, the track is divided into a plurality of sectors, and data is stored in units of the sector. 2. A disk recording method for recording data in sector units on a disk medium capable of recording / reproducing data, wherein (1) a step of designating a recording area in which data recording is performed; Performing a dirt inspection by the method; (3)
Changing the recording area specified in step (1) to an area in which no stain is detected based on the reported stain detection area time.

In order to solve this problem, according to a sixth aspect of the present invention, there is provided a disk recording method comprising: forming a concentric track or a spiral track; dividing the track into a plurality of sectors; 1. A disk recording method for recording data on a sector-by-sector basis on a disk medium capable of recording and reproducing data, comprising: (1) an amplitude value of a signal in a head for recording and reproducing data on an area of the disk medium; A dirt inspection for determining that there is dirt when the dirt is continued for a predetermined time in a state smaller than the reference value; and (2) a step of recording data in an area where dirt is not detected in the dirt inspection. It is characterized by including.

In order to solve this problem, according to a seventh aspect of the present invention, there is provided a disk recording method, wherein a concentric track or a spiral track is formed, and the track is divided into a plurality of sectors. A disk recording method for recording data in sector units on a disk medium divided into at least one or more zones capable of recording and reproducing data, wherein a maximum burst length in a circumferential direction capable of error correction is provided. Of the length when the is arranged in the radial direction
/ K (k is an integer equal to or greater than 1) and the track width n are calculated from the track width, and a dirt inspection for determining that dirt is present when a predetermined period of time has elapsed while being smaller than a reference value is performed on each of the disk media. It is characterized in that it is performed every n tracks in the zone.

In order to solve this problem, an information recording medium according to an eighth aspect of the present invention is configured such that a concentric or spiral track is formed, the track is divided into a plurality of sectors, and the data is stored in units of the sector. Characterized by storing information indicating an area where dirt is detected.

In order to solve this problem, an information recording medium according to a ninth aspect of the present invention is configured such that a concentric or spiral track is formed, and the track is divided into a plurality of sectors, and the data is stored in sector units. Is a disc medium capable of recording / reproducing, and stores information indicating whether or not a dirt inspection has been performed.

To solve this problem, the tenth aspect of the present invention
The disk recording method according to the invention is characterized in that, in addition to the features of the first to seventh aspects, a stain detection area detected by the stain inspection is recorded on a disk medium.

To solve this problem, an eleventh embodiment of the present invention is described.
The disk recording method according to the present invention is characterized in that, in addition to the features of the first to seventh aspects, an area in which a dirt inspection is performed is recorded on a disk medium.

To solve this problem, the twelfth aspect of the present invention is described.
The disk recording method according to the present invention, in addition to the features of the first to seventh aspects, is a disk recording method for recording data on a disk medium stored in a form that can be taken in and out of a cartridge. It is characterized in that a dirt inspection is performed based on information indicating that the cartridge has been taken out of the cartridge.

To solve this problem, a thirteenth embodiment of the present invention is described.
In the disk recording apparatus of the invention, concentric or spiral tracks are formed, the tracks are divided into a plurality of sectors, and the sector unit is used for a disk medium capable of recording and reproducing data in the sector units. A dirt detecting means for determining that the disk medium is dirt when the amplitude value of the signal in the head for recording and reproducing the signal lasts for a certain time in a state smaller than the reference value. And performing recording by the disk recording method according to the first to seventh aspects of the invention.

To solve this problem, the fourteenth aspect of the present invention
In the disk recording apparatus of the invention, concentric or spiral tracks are formed, the tracks are divided into a large number of sectors, data can be recorded / reproduced on a sector-by-sector basis, and the data can be stored in a cartridge. A disk recording apparatus for recording data on a sectored disc medium on a sector-by-sector basis, comprising means for determining whether or not the disc medium has been removed from the cartridge, The recording is performed by the

[0033]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are explanatory diagrams of an optical disk medium according to an embodiment of the present invention. FIG. 1 is a structural diagram of an optical disk medium, and is a disk-shaped optical disk medium 1.
Are formed with concentric or spiral tracks, and each track is formed with a large number of finely divided sectors. Absolute addresses called physical sector addresses are added to the heads of all these sectors.

A control information area 4 and a data recording area 5 are arranged on the optical disc medium 1, and data recording and reproduction are performed on the data recording area 5. The control information area 4 is arranged on the innermost and outermost sides of the optical disc medium 1, and
Disk control information in which parameters necessary for accessing the disk are recorded, defect management information for managing defective sectors detected from the data recording area, and the like are recorded.

FIG. 2 shows an example of the sector management system. Each track is composed of five sectors, and the tracks are numbered from 0 to T. Based on this track number, the position on the disk medium 1 is ascertained and each sector is accessed. For example, when accessing the sector 010, the access is performed by scanning the track 2. Note that the number of sectors in each track may be different for each track, and in that case, the access method does not change.

FIG. 3 shows a method of managing the disk medium 1 using zones. This is a system in which the disk is divided into several areas in the optical disk medium 1 shown in FIG. 1 and managed. As a superordinate concept of the management system described in FIG. The area of the optical disk medium is managed by the zone numbers of zone 0 to zone N.

FIG. 4 is a diagram showing the relationship between zone numbers and track numbers. In this example, 1000 tracks are managed as one zone. 1000 tracks from track 0 to track 999 are defined as zone 0, and the following 1000 tracks are defined as 1 zone.
The zone is managed as a zone, and the zone including the last track T is the last zone N. Note that the number of tracks in each zone may be different for each zone, and the management method does not change in such a case.

(Embodiment 1) FIG. 5 is a diagram showing an example of an information processing system composed of a disk recording / reproducing device and a host device. The information processing system of FIG. 5 includes a host device 200, a disk recording / reproducing device 100, and a rewritable optical disk 1.

The host device 200 includes a CPU 201, a memory 204, a bus interface 203, a processor bus 202, an I / O bus 205, and a hard disk device 20.
6, a display processing unit 207 and an input unit 208.
It is connected to the disk recording / reproducing apparatus 100 via the / O bus 205.

The processor bus 202 is a high-speed bus for the CPU 201 to access the memory 204, and the I / O bus 205
It is connected to the.

The I / O bus 205 is a SCSI (Small Co.)
mputer System Interface) or ATA (AT Attachment)
And USB (Universal Serial Bus) and IEEE1394
It is a general-purpose bus that includes a PCI bus for convenience.
It is described as the same bus as a personal computer expansion bus such as a bus or an ISA bus.

The display processing unit 207 converts display information sent from the I / O bus 205 into a signal such as RGB and sends it to a display. The input unit 208 notifies the CPU 201 of an input from an input device such as a keyboard or a mouse via the I / O bus 205. Hard disk drive 20
Reference numeral 6 denotes an auxiliary storage device for inputting and outputting data to and from the main storage 204 via the I / O bus 205.

As described above, the host device 200 is a component of a general personal computer, and includes MS-DOS (registered trademark) and Win stored in the hard disk device 206.
An operating system such as Windows (registered trademark) or a program file is loaded into the memory 204, and the CPU 204 is operated by a user instruction from the input unit 208.
201 performs arithmetic processing, and displays the processing result in the display processing unit 207.
Notify the user via.

The disk recording / reproducing apparatus 100 includes an optical disk medium 1, a motor 101, a head 102, an analog signal processing unit 103, a servo control unit 104, and a modulation / demodulation unit 1.
05, error detection and correction means 106, dirt detection means 107,
Bus 108, memory 109, drive control means 110,
It is configured by an external interface 111.

The motor 101 rotates the optical disk medium 1
It stops and operates at the time of access. Head 10
Reference numeral 2 denotes a unit for recording / reproducing information on / from the optical disk medium 1, and includes a laser device and a lens. The analog signal processing unit 103 inputs and outputs analog signals to and from the head 102. The servo control means 104 controls the head 102 and the motor 1 so as to access a target sector based on a signal obtained from a groove formed in the optical disc medium 1.
01 is controlled.

When a signal is input from the head 102 to the analog signal processing means 103, the stain detection means 107
If the reflectivity of the laser beam on the recording surface of the optical disc medium 1 continues for a certain period of time at or below the average value of the recordable reflectivity, it is determined that an error has occurred due to dirt, and the drive controller 110 is notified of dirt detection. . Dirt detection means 10
The reference value for judging an error by the reference 7, that is, the average value and the time of the recordable reflectivity are recorded in advance in the disc control information of the control information area 6.

The modulation / demodulation means 105 inputs / outputs data to / from the analog signal processing means 103, such as demodulating the analog data from the analog signal processing means 103 into a bit string and modulating the bit string and sending the data to the analog signal processing means 103. .

The error detection and correction means 106
After that, the data string sent through the analog signal processing means 103 and the modulation / demodulation means 105 is subjected to error detection, and if there is an error, correction processing is performed.
Generally, code processing such as CRC and ECC is performed, and a data sequence based on the code processing is recorded on the optical disc medium 1.

The memory 109 includes an area used as an intermediate buffer at the time of data recording / reproduction and the error detection / correction means 1.
06 is used in all data processing in the disk recording / reproducing apparatus 100, such as an area for performing arithmetic processing.

The drive control means 110 is connected to the dirt detection means 107, the servo control means 104, the modulation / demodulation means 105, the error detection and correction means 106, and the memory 109 via the bus 108, and issues an instruction to each control means. , And controls the entire disc recording / reproducing apparatus 100. Usually, the drive control means 110 is a processor, and its operation software is stored in the memory 109.

The external interface 111 is connected to the bus 10
8 for receiving commands from the outside to the disk recording / reproducing apparatus 100, outputting status, and inputting / outputting data.

FIG. 8 is a diagram showing the state of tracks on the optical disc medium 1 during recording. In FIG. 8, track number 2
Sectors 101 and 10 from 0 to track number 21
This shows a state in which dirt spreads over six sectors 2, 103, 106, 107 and 108.

FIG. 12 is a flowchart showing an operation of recording information in the area including the track shown in FIG. 8 in the information processing system configured as described above. FIG. 12 is a diagram illustrating an operation from when the host device 200 is instructed to perform a recording operation by the input unit 208 to when the recording operation on the disk medium 1 by the disk recording / reproducing device 100 is completed. There are three steps: a recording area initializing operation of the operation (2001), a recording region inspection operation of the operations (2002) to (2006), and a data recording operation of the operations (2007) to (2008). . Hereinafter, the description will be made in chronological order with reference to FIG.

(1) Recording area initial setting operation When recording data, it is determined in advance which area of the data recording area 5 to record based on the size of the data. This is an operation (2001) of allocating a file to an unrecorded sector of the data recording area 5 based on the file system managed by the memory 204 of the host device 200.

FIG. 9A is a diagram showing a state in which the data file 10 is allocated to the data recording area 5. FIG.
The data file 10 in (a) shows data to be recorded and has a size of 10 sectors. In FIG. 9A, the data file 10 is moved from the sector 100 to the sector 109.
The numbers in the boxes of the data recording area 5 represent the sector numbers, and the hatched boxes are the stained sectors shown in FIG.

(2) Recording Area Inspection Operation After the initial allocation to the sectors 100 to 109 as shown in FIG.
A recording area contamination test is performed. The recording area stain inspection is an operation performed before recording, and is executed by issuing a stain inspection command to the disk recording / reproducing apparatus 100 (2002).

In the dirt inspection command, track numbers 20 to 21 are designated as inspection areas. This is shown in FIG.
Is an area including the initial allocation area sectors 100 to 109 indicated by.

Upon receiving the dirt inspection command (2002), the disk recording / reproducing apparatus 100 executes a dirt inspection process (1010). FIG. 13 shows a dirt inspection processing operation of the disc recording / reproducing apparatus 100 that has received the dirt inspection command. The dirt inspection processing is an operation in which dirt is detected by the dirt detecting means 107 in a designated area of the optical disc medium 1.

First, upon receiving a command from the host device 200 via the external interface 111, the drive control means 110 interprets the contents and starts operation (100).
1).

Next, as initial address setting, the drive control means 110 sets an address located at the head of the designated area (1002), instructs the servo control means 104, and controls the motor 101 and the head 102. Control and access. This access is completed in a very short time because it is not necessary to generate data as in a recording operation performed in units of a sector which is usually performed, and only laser beam irradiation is performed in units of a track.

When the head 102 makes an access, dirt is detected by the dirt detecting means 107 (1003).
If the signal output from the head 102 to the analog signal processing means 103, that is, the reflectance of the head 102 with respect to the optical disk medium 1 for a laser beam is equal to or less than a reference value for a certain period of time, it is determined that there is dirt (1004). Notify the means 110.

FIG. 6 shows an example of detection by the dirt detecting means 107. In FIG. 6, since the time during which access has fallen below the reference value R is longer than the reference time S, this section is determined to be an error due to dirt. The recordable amplitude reference value T and reference time S are recorded in the control information area 4 as disc control information.

The drive control means 110, having received the notification of the presence of dirt, stores the track number in the write-protection entry so as to prohibit writing to this track (1005).

Thereafter, while increasing the address (100
7) Repeating this, after reaching the final address of the designated area (1006), the access is terminated, and the contents of the recording prohibition entry are returned to the host device 200 via the external interface 111 (1008).

After issuing the command, the higher-level device 200 receives the recording prohibition entry from the disk recording / reproducing device 100 (2004), and ends the dirt inspection.

FIG. 10 shows a recording prohibition entry after the operations (2002) to (2004) of the disk recording / reproducing apparatus 100 are performed on FIG. 9A, and the track 20 and the track 21 are entered. . This record prohibition entry is stored in the memory 204 of the host device 200.
If the number of write-inhibited entries is 0, the initial allocation area is not changed (2005), and if the number of entries is 1 or more, the recording area is reset (2006).

FIG. 9B is a diagram showing a state where the data file 10 is reset to the sectors 110 to 119 which are areas other than the tracks 20 and 21 for which the recording inhibition entry has been made.

(3) Data Recording Operation When the recording area is determined, the host device 200 issues a data recording command to the disk recording / reproducing device 100 (2007), and the recording process is performed by the disk recording / reproducing device 100 (1011). ).

In the disk recording / reproducing apparatus 100, the external interface 111 receives a data recording command, the drive control means 110 analyzes the command, determines the recording position of the data to be recorded on the optical disk medium 1, and prepares for data reception. .

Next, the data received by the external interface 111 is temporarily stored in the memory 109, where an error correction code is added by the error detection and correction means 106. After the data is prepared, the drive control unit 110
Is based on the previously determined recording position,
04, the motor 101 and the head 1
With 02, access is made to the first sector to be recorded on the optical disc medium 1. The data previously prepared in the memory 109 by the error detection and correction means 106 is transferred to the modulation / demodulation means 1.
05 and modulates the analog signal processing means 10
3. Data is recorded by the head 102 from the first sector.

Thereafter, data is similarly recorded at the sector address specified by the drive control means 110. When the recording is completed, the disk recording / reproducing device 100 returns a status to the host device 200 and ends the recording operation.

The host device 200 issues a recording command (20
07) After that, the status is received from the disk recording / reproducing apparatus 100 (2008), and the data recording operation ends.

As described above, in consideration of the case where dirt has adhered to the recording area, the dirt inspection is performed on the recording area which has been initialized in advance, and the dirt-adhered area is excluded from the recording area to remove the data. By allocating a file, a defective sector is hardly detected during a data recording operation.

The operation when the data file 10 recorded in the area shown in FIG. 9B by the recording method described above is reproduced by the information processing system configured as shown in FIG. explain.

The host device 200 is the disk recording / reproducing device 1
By issuing a data reproduction command to the data file 00, the data file 10 is reproduced. At this time, the memory 20
A reproduction command is issued to the area in which the data file 10 has been recorded: sector 110 to sector 119 based on the file system managed in step 4.
That is, a reproduction command having a length of 10 to 10 sectors is issued to the disk recording / reproducing apparatus 100.

The disk recording / reproducing apparatus 100 that has received the reproduction command executes a reading process from the disk medium 1.

When the external interface 111 receives a reproduction request command from the outside, the drive control means 110 analyzes the command, calculates a physical storage position of the data to be reproduced on the disk medium 1, and prepares for data reading. .

Next, the drive control means 110 instructs the servo control means 104 based on the storage position determined previously, and uses the motor 101 and the head 102 to read the sector on the optical disk medium 1 to be read. Access is made.

The data read out via the analog signal processing means 103 is demodulated by the modulation / demodulation means 105, temporarily stored in the memory 109, and the error detection and correction means 106 detects and corrects errors. The drive control unit 110 causes the data on the memory 109 to be output from the external interface 111. Thereafter, in the same manner,
The data specified by the command is reproduced.

Disk medium 1 for specified sector
Upon completion of the reading process from, the disk recording / reproducing apparatus 100 returns a status to the host apparatus 200 and ends the reproducing operation. After issuing the playback command, the host device 200
The status is received from the disc recording / reproducing device 100, and the reproducing operation is completed.

As described above, when the data file is recorded, the area where the dirt is adhered is eliminated and the allocation is performed.
Access to the replacement sector rarely occurs during the data reproducing operation.

In the recording area inspection operation, track numbers 20 to 21 are designated. At this time, the dirt inspection is performed on the second and third allocation candidate areas by judging from the size of the data file 10 to be allocated. Is more effective. For example, if the inspection is performed on the track numbers 20 to 25, it is possible to eliminate the stain-attached area by one inspection.

Although a track number is stored as a record prohibition entry, it is sufficient that an area on an optical disk medium can be specified, and only a track number, a combination of a track number and a sector number, or a one-dimensional physical sector address is stored and recorded. It does not matter.

Note that the record prohibition entry is stored in the host device 200
May be stored in the memory 109 of the disk recording / reproducing apparatus 100 and returned to the host apparatus 200 by a recording prohibition entry inquiry command. In this case, the host apparatus 200 discards the data after completing the data recording. It does not matter.

The dirt detecting means 107 determines an error due to dirt based on the reflectance of the laser beam on the recording surface of the optical disk medium 1. (Wobble signal). As a signal used as a reference for error determination, a signal affected by dirt attached to the disk surface may be used, and is not limited to a reflectance or a wobble signal. This is the same in other embodiments.

The reference value for the dirt detection means 107 to judge an error, that is, the recordable amplitude value and time are recorded in the disc control information in the control information area 5, but this reference value is used for disc recording. It may be stored in the playback device 100.

Further, the reference value that the dirt detection means 107 determines as an error, that is, the recordable amplitude value and time, are the reference values calculated from the maximum value and average value obtained by measuring several places on the disk medium 1. May be used.

(Embodiment 2) The information processing system according to Embodiment 2 has the same configuration as that of Embodiment 1, and its operation is also the same as that of Embodiment 1.

FIG. 14 is a flowchart showing the recording operation of the host device 200 when it is notified that the disk medium 1 is mounted on the disk recording / reproducing apparatus 100. There are two steps: a disk inspection operation of operations (2002) to (2004), and a data recording operation of operations (2020) to (2021) and operation (2006). Hereinafter, description will be made with reference to FIG.

(1) Disk Inspection Operation When the disk medium 1 is loaded, the host device 200 performs a recording area stain inspection on an unrecorded area. The recording area stain inspection is an operation performed before recording, and is executed by issuing a stain inspection command to the disk recording / reproducing apparatus 100 (2002).

In the issuance of the dirt inspection command (2002),
A dirt inspection command is issued to the unrecorded area of the optical disc medium 1 as the inspection area, specifying the track interval n. The track interval n is set in advance according to the type of the disk medium 1. If n is 1000, the track number is 0000, the track number is 1000, the track number is 2000,. . . Is specified.

For example, if the track width is 1 micrometer and n is set to 1000, dirt detection is performed at 1 millimeter intervals. Such designation is performed because a fingerprint may be attached when the optical disk medium 1 is loaded or unloaded. For tracks arranged with a width of a micron, fingerprint-like stains of a few millimeters are very widespread. Therefore, even if the inspection is performed for each track at a certain fixed interval, it is possible to specify a stained area.

The operation (1010) of the disk recording / reproducing apparatus 100 that has received the dirt inspection command is the same as the operation described in the first embodiment with reference to FIG.

After issuing the command, the higher-level device 200 receives the recording prohibition entry from the disk recording / reproducing device 100 (2004) and holds the entry until the disk medium 1 is taken out from the disk recording / reproducing device 100. this is,
This is because, in the state of being mounted on the disk recording / reproducing apparatus 100, stains such as fingerprints on the disk medium 1 do not increase, and the recording prohibition entry does not change until the disk medium 1 is taken out. An example of the recording prohibition entry at this time is the same as that shown in FIG. 10 described in the first embodiment.

(2) Data Recording Operation Upon receiving a recording instruction from the input unit 208 (2020), the host device 200 selects an area that has not been registered in the recording prohibition entry among the unrecorded areas, and sets the recording area. Is performed (2021).

When the recording area is determined, the host device 200
A data recording command is issued to the disk recording / reproducing apparatus 100 (2007). The operation (1011) of the disk recording / reproducing apparatus 100 at this time is the same as the operation described in step 3 of the first embodiment.

The host device 200 issues a recording command (20
07) After that, the status is received from the disk recording / reproducing apparatus 100 (2008), and the data recording operation ends.

As described above, in consideration of the case where dirt is attached to the recording area, the dirt inspection is performed on the unrecorded area when the disk medium is mounted, and the track where the dirt is detected is excluded to remove the data / data. By allocating a file, a defective sector is hardly detected during a data recording operation.

(Embodiment 3) An information processing system according to Embodiment 3 has the same configuration as that of Embodiment 1, and its operation is also the same as that of Embodiment 1.

In the third embodiment, the recording operation of the higher-level device 200 when notified that the disk medium 1 has been mounted on the disk recording / reproducing apparatus 100 is the same as in FIG. 14 described in the second embodiment. The only difference is the designation of the inspection area in the dirt inspection command issuance (2002).

In issuing the dirt inspection command (2002),
A dirt inspection command with a zone number specified is issued to an unrecorded area of the optical disc medium 1 as an inspection area.

The operation of the disc recording / reproducing apparatus 100 which has received the dirt inspection command by designating the zone number is described in the first embodiment.
13 except for the method of setting the address to be accessed.

When specified by the zone number, the disc recording / reproducing apparatus 100 accesses while performing a track jump so as to inspect every n tracks in each zone. That is, the access is performed up to the final address while increasing the address. This address increase is set to jump every track number n. For example, if the jump track number n is set to 1000, after accessing the track number 10000, the next access becomes the track number 11000, and thereafter, the inspection is performed while repeatedly performing the jump at this interval.

The number n of jump tracks at the time of accessing while performing track jumps is the maximum burst length in the circumferential direction in which error correction can be performed, considering that fingerprint dirt is substantially circular.
The length is calculated from the track width of the disk medium 1 so that the length is １ ／ of the length when it is assumed to be arranged in the radial direction. The half of the maximum burst length is the minimum value for surely performing the inspection in this range, and may be determined as 1 / k (k is an integer of 1 or more).

Thus, for example, if the track width is 1 micrometer and n is set to 1000, access is performed at 1 millimeter intervals. Such an access is performed because a fingerprint may be attached when the optical disk medium 1 is loaded or unloaded. For tracks arranged in micrometer widths, fingerprint-like stains, which can be several millimeters, are very extensive. Therefore, even if access is made for each track at a certain constant interval, it is possible to specify a dirty area.

As described above, in consideration of the case where dirt is attached to the recording area, the dirt inspection is performed on the unrecorded area when the disk medium is mounted, and the zone where dirt is detected is excluded to remove the data / data. By allocating a file, a defective sector is not detected during a data recording operation.

It should be noted that the access is performed while jumping every n tracks during the disc contamination inspection operation, but the access may be performed while performing a track jump so as to inspect some points in each zone.

The number of jump tracks n in the disc contamination inspection operation may be a value recorded in the disc control information of the control information area 4 in advance.

(Embodiment 4) An information processing system according to Embodiment 4 has a configuration similar to that of Embodiments 2 and 3, as shown in FIG. This is the same as Embodiment 3. Embodiment 2
The third embodiment is different from the third embodiment in that, in addition to the recording prohibition entry received when the dirt inspection command is issued, the memory 2 stores inspection information indicating whether or not the dirt inspection command has been issued.
04.

This inspection information is information indicating whether or not a dirt inspection has been performed on all tracks and all zones on the disk medium 1, and is applied to the second embodiment in FIG. FIG. 11B shows an example in which the example is applied to the third embodiment.

Since the information indicates the presence / absence of the inspection, it can be identified by 1-bit information, can be managed by a bit map system, and its size is small even if information of all tracks is held. Further, when applied in the third embodiment, since each zone has 1-bit information for all zones, it can be held as smaller management information.

Having this inspection information makes it possible to divide the dirt inspection area into several parts and issue the dirt inspection command in a plurality of times. For example, Embodiment 2
When the unrecorded area that needs to be inspected for dirt is almost the entire area on the disk medium, the dirt inspection takes a long time. After the data recording, the inspection can be performed again on the uninspected area with reference to the inspection information.

As described above, it is not necessary to perform a dirt inspection on an unrecorded area with a single command, and it is possible to execute the division in a divided manner. Becomes possible.

Although the stain inspection is performed on the unrecorded area on the disk medium, the stain inspection may be performed on the entire area without considering the recorded area and the unrecorded area. Even in this case, since it is possible to determine which area is being inspected based on the inspection information, the entire area can be inspected regardless of whether the inspection is performed once or several times.

When information indicating that the disk medium has been removed from the cartridge is held, the disk medium is inspected for dirt only when the disk medium is removed, and no removal is performed. In such a case, the dirt inspection may not be performed. This is because, if the disk medium remains in the cartridge, stains such as fingerprints are unlikely to occur.

(Embodiment 5) FIG. 7 is a configuration diagram of an information processing system according to Embodiment 5. The information processing system 300 shown in FIG.
1, head 102, analog signal processing means 103, servo control means 104, modulation / demodulation means 105, error detection and correction means 106, dirt detection means 107, bus 108, memory 1
09, a processor 120, an operation control means 121, and a data input / output control means 122.

The optical disk medium 1, the motor 10
1, head 102, analog signal processing means 103, servo control means 104, modulation / demodulation means 105, error detection and correction means 106, dirt detection means 107, bus 108, memory 1
09 is the same as the configuration described in the first embodiment.

The operation control means 121 receives an operation instruction to the information processing system 300 by an operation button or the like, and outputs an operation state of the information processing system 300 such as during recording or reproduction to a display panel.

The data input / output control means 122 controls data input / output from the outside to the information processing system 300, and stores and retrieves data from / to the data buffer on the memory 109.

The processor 120 controls the servo control means 10
4. Modulation / demodulation means 105, error detection and correction means 106, dirt detection means 107, memory 109, operation control means 121
The data input / output unit 122 is connected via the bus 108, interprets the operation instruction received by the operation control unit 121, and instructs each control unit to control the entire information processing system 300. 1 is recorded and reproduced.

FIG. 8 is a diagram showing the state of tracks on the optical disc medium 1 during recording. In FIG. 8, track number 2
Sectors 101 and 10 from 0 to track number 21
This shows a state in which dirt spreads over six sectors 2, 103, 106, 107 and 108.

FIG. 15 is a flowchart showing the recording operation to the area including the track shown in FIG. 8 in the information processing system configured as described above. FIG. 15 shows a state in which a recording operation is instructed by the operation control unit 121,
FIG. 4 is a diagram showing an operation until a recording operation on a disc is completed. There are three steps of an operation (3001), a recording area initial setting operation, an operation (3002) to an operation (3009), a recording area inspection operation, and an operation (3010), a data recording operation. Hereinafter, description will be made with reference to FIG.

(1) Recording area initial setting operation When recording data, it is determined in advance which area of the data recording area 5 to record based on the size of the data. This is an operation (3001) of allocating a file to an unrecorded sector of the data recording area 5 based on the recording area management managed by the memory 109.

FIG. 9A is a diagram showing a state in which data is allocated to a data file in a data file. The data file 10 in FIG. 9 indicates data to be recorded, and has a size of 10 sectors. FIG. 9A shows an example in which the data file 10 is continuously allocated from the sector 100 to the sector 109. The numbers in the boxes of the data recording area 5 indicate the sector numbers, and the boxes with diagonal lines are shown in FIG. This is the sector with dirt attached indicated by.

(2) Recording Area Inspection Operation After the initial allocation to the sectors 100 to 109 as shown in FIG.
A recording area contamination test is performed. For dirt inspection, track number 2
This is performed for 0 to 21, which is an area including the initial allocation area sectors 100 to 109 shown in FIG.

First, as an address initial setting, an address located at the head of the inspection area is set (3002), an instruction is given to the servo control means 104, and the motor 101 is set.
And controlling the head 102 to perform access. This access is completed in a very short time because only the laser beam irradiation is performed in units of tracks without performing data generation such as the recording operation in units of sectors which is usually performed.

When the head 102 accesses, the dirt detecting means 107 detects dirt (3003).
When the signal output from the head 102 to the analog signal processing means 103, that is, the reflectance of the head 102 with respect to the optical disk medium 1 for the laser light is equal to or less than the reference value for a certain period of time, it is determined that there is dirt (3004), and the processor 12
Notify 0.

FIG. 6 shows an example of detection by the dirt detecting means 107. In FIG. 6, since the time during which access has fallen below the reference value R is longer than the reference time S, this section is determined to be an error due to dirt.

The processor 120 that has been notified of the presence of dirt
Stores the track number in the recording prohibition entry on the memory 109 so as to prohibit writing to this track (3005).

Thereafter, while increasing the address (300
7) This is repeated, and after reaching the final address of the inspection area (3006), the access is terminated.

FIG. 10 shows a recording area stain inspection operation (300).
This shows a record prohibition entry after performing 2) to (3006), and a track 20 and a track 21 are entered.

If the number of entries is 0, the processor 120 does not change the initial allocation area. If the number of entries is 1 or more, the processor 120 resets the recording area (3009).

FIG. 9B is a diagram showing a state in which the data file 10 is reset to the sectors 110 to 119 which are areas other than the tracks 20 and 21 for which the recording inhibition entry has been made.

(3) Data Recording Operation When the recording area is determined, the data input / output control means 122 records the received data (3010).

The received data is temporarily stored in the memory 109, where an error correction code is added by the error detection and correction means 106. After the data is prepared, the processor 120 instructs the servo control means 104 based on the previously determined recording position, and accesses the head sector to be recorded on the optical disc medium 1 by the motor 101 and the head 102. Is performed. After the error detection and correction means 106 sends the data previously prepared in the memory 109 to the modulation and demodulation means 105 and modulates the data, the analog signal processing means 103 and the head 102 record the data from the first sector.

Thereafter, data is similarly recorded at the sector address specified by the processor 120. When the recording is completed, the operation control means 121 displays the completion of the recording on the display panel, and ends the recording operation.

As described above, in consideration of the case where dirt has adhered to the recording area, a dirt inspection is performed on the recording area which is initially set in advance, and the dirt-adhered area is removed from the recording area to remove the data. By allocating a file, a defective sector is not detected during a data recording operation.

The operation when the data file 10 recorded in the area shown in FIG. 9B by the recording method described above is reproduced by the information processing system configured as shown in FIG. explain.

When the data file 10 is reproduced, the data file 10 is recorded in the area: sector 110 to sector 119 based on the file system managed by the memory 109. That is, a reproduction process of a length of 10 sectors from the sector 110 is executed.

The processor 120 calculates the physical storage position of the data to be reproduced on the disk medium 1, and prepares for data reading.

Next, the processor 120 gives an instruction to the servo control means 104 based on the storage position determined previously, and the motor 101 and the head 102 access the sector on the optical disk medium 1 from which data is to be read. Done.

The data read through the analog signal processing means 103 is demodulated by the modulation / demodulation means 105, temporarily stored in the memory 109, and the error detection / correction means 106 detects and corrects errors. The drive control unit 110 causes the data on the memory 109 to be output from the external interface 111. Thereafter, in the same manner,
It accesses the requested sector and reproduces the data.

As described above, when the data file recording is performed, the area where the dirt is adhered is eliminated and the allocation is performed.
Access to the replacement sector rarely occurs during the data reproducing operation.

Further, compared to the first embodiment which performs the same operation, since there is no command processing and processing is performed by a single processor and memory, the response to a recording request is further speeded up.

Although the respective control means are connected by the bus 108, the effect is not changed by any connection method as long as signals and data can be exchanged with each other.

Although FIG. 7 shows one memory, the memory may be divided for each purpose or may be built in each control means.

(Embodiment 6) The information processing system according to Embodiment 6 has the same configuration as that of Embodiment 5, and its operation is also the same as that of Embodiment 5.

FIG. 16 is a flowchart showing a recording operation when the disk medium 1 is loaded. Operation (300
2) to disk operation of operation (3006), and operation (3020) to operation (3021) and operation (301)
There are two steps of the data recording operation 0).

The operation shown in FIG. 16 is the disk inspection operation of the operations (2002) to (2004) described in the second embodiment, and the data recording of the operations (2020) to (2021) and operation (2006). The operation is the same as the two steps, and the interface operations (2002), (2004), (2007), and (200) of the host device 200 and the disk recording / reproducing device 100 in FIG.
8), and the only difference is that the recording area setting, the inspection track determination, and the record inhibition entry number determination are executed by the processor 120.

As in the second embodiment, in consideration of the case where dirt is attached to the recording area, a dirt inspection is performed on the unrecorded area when the disk medium is mounted, and the track where dirt is detected is removed. By allocating the data file by using this method, a defective sector is hardly detected during the data recording operation.

Furthermore, compared to the second embodiment in which the same operation is performed, there is no command processing and processing is performed by a single processor and memory, so that the response to a recording request is further speeded up.

(Embodiment 7) An information processing system according to Embodiment 6 has the same configuration as that of Embodiment 5, and its operation is also the same as that of Embodiment 5.

FIG. 16 is a flowchart showing a recording operation when the disk medium 1 is loaded. Operation (300
2) to disk operation of operation (3006), and operation (3020) to operation (3021) and operation (301)
There are two steps of the data recording operation 0).

The operation shown in FIG. 16 is the disk inspection operation of the operations (2002) to (2004) described in the third embodiment, and the data recording of the operations (2020) to (2021) and the operation (2006). The operation is the same as the two steps, and the interface operations (2002), (2004), (2007), and (200) of the host device 200 and the disk recording / reproducing device 100 in FIG.
8), and the only difference is that the recording area setting, the inspection track determination, and the record inhibition entry number determination are executed by the processor 120.

As in the third embodiment, in consideration of the case where dirt is attached to the recording area, a dirt inspection is performed on the unrecorded area when the disc medium is mounted, and the zone where dirt is detected is excluded. By assigning data files by
Defective sectors are hardly detected during the data recording operation.

Further, compared to the third embodiment which performs the same operation, since there is no command processing and processing is performed by a single processor and memory, the response to a recording request is further speeded up.

(Eighth Embodiment) An information processing system according to an eighth embodiment has a configuration similar to that of the sixth and seventh embodiments and is as shown in FIG. This is the same as in the seventh embodiment. Embodiment 6
The seventh embodiment is different from the seventh embodiment in that, in addition to a record prohibition entry created at the time of a stain inspection, inspection information indicating whether or not a stain inspection has been performed is stored in the memory 109.

This inspection information is information indicating whether or not a dirt inspection has been performed for all tracks or all zones on the disk medium 1, and is applied to the sixth embodiment in FIG. FIG. 11B shows an example in which the example is applied to the seventh embodiment.

Since the information indicates the presence / absence of inspection, it can be identified by 1-bit information, can be managed by a bit map system, and the size of the information is small even if information of all tracks is held. Further, when applied in the seventh embodiment, since each zone has 1-bit information for all zones, it can be held as smaller management information.

By having this inspection information, it becomes possible to divide the dirt inspection area into several parts and issue the dirt inspection command in a plurality of times. For example, Embodiment 6
When the unrecorded area that needs to be inspected for dirt is almost the entire area on the disk medium, the dirt inspection takes a long time. After the data recording, the inspection can be performed again on the uninspected area with reference to the inspection information.

As described above, there is no need to perform a dirt inspection on an unrecorded area with a single command, and divisional execution can be performed. Therefore, it is possible to immediately respond to a data recording instruction. It becomes possible.

Furthermore, compared to the fourth embodiment in which the same operation is performed, since there is no command processing and processing is performed by a single processor and memory, the response to a recording request is further speeded up.

(Embodiment 9) FIG. 17 is an area configuration diagram of an optical disc medium 1 according to Embodiment 9. FIG. 17 shows the configuration of the optical disk medium, which is composed of a control information area 4 and a data recording area 5. Data recording and reproduction are performed on the data recording area 5. The control information area 4 is located on the innermost and outermost sides of the optical disc medium 1, and is detected from the disc control information 6 in which parameters necessary for accessing the disc are recorded and the data recording area. It comprises defect management information 7 for managing defective sectors and recording control information 8 in which information for identifying whether or not recording is prohibited is recorded.

The information recorded in the recording control information 8 is the recording inhibit entry described in the first to third embodiments and the fifth to seventh embodiments, or the inspection information and the recording inhibit entry in the fourth and eighth embodiments. Information.

FIG. 18 shows an example of the recording control information 8. The recording control information identifier indicating that the recording control information is the recording control information in the control information area 4, the number of recording inhibition entries indicating the number of entries for which recording is inhibited, and the like. , And a recording prohibition entry indicating an area set as a recording prohibition area such as a track number or a zone number, and the recording prohibition entry described in the first to third embodiments and the fifth to seventh embodiments is recorded.

FIG. 19 shows an example of the recording control information 8. A recording control information identifier indicating the recording control information in the control information area 4 and a dirt inspection are carried out for each zone number from 0 to N. Embodiment 4 is composed of zone inspection information indicating whether or not the inspection has been performed, and recording inhibition information indicating the inspection result.
In the eighth embodiment, the inspection information and the recording prohibition information are recorded.

As described above, by recording the recording prohibition information by the dirt inspection on the disk medium, when the disk medium 1 is taken out, wiped off the dirt and mounted again, etc. Since the comparison with the inspection result becomes possible, it is possible to identify that the recording has become possible due to the removal of the stain.

Incidentally, information indicating whether or not the disk medium has been removed from the cartridge after the dirt inspection may be recorded in the recording control information 8. When the cartridge is taken out from the cartridge by this information, the inspection information and the recording prohibition information of the recording control information 8 are invalidated, and it becomes possible to inspect the contamination of the disk medium again. This is because the removal of the disk medium from the cartridge causes stains such as fingerprints to adhere.

[0169]

As described above, according to the present invention, even if the recording area on the optical disk medium is stained,
By performing a dirt inspection before recording and excluding it from the data / file allocation area in advance, it is possible to reduce the data recording time without performing defective sector processing at the time of data recording.

In particular, when recording real-time AV data, a dirt inspection is performed before recording, and the recording area is reset, so that the time required for defect processing during recording is significantly reduced. , The accuracy of the recording time is increased,
Recording can be performed at a reliable bit rate.

Also, since almost no access to the replacement sector occurs at the time of reproduction, the prediction accuracy of the reproduction time is enhanced, and reproduction can be performed at a reliable bit rate.

Further, when dirt is detected, it is only necessary to create a recording prohibition entry. When data is recorded, it is possible to perform recording while avoiding the dirt detection area. And the replacement destination sector area can be greatly reduced. Furthermore, since the number of registrations in the defect management information list is reduced, the time required to search the defect management information list can be significantly reduced.

Further, after the elapse of time, after the dirt is wiped off, the dirt inspection need only be performed again, and the calculation time for reconstructing the defect list can be greatly reduced.

Therefore, the efficiency of use of the disk is improved, and an information processing system with a high recording / reproducing speed on the disk can be realized.

Further, at the time of the dirt inspection, the inspection is performed while jumping every track number n instead of inspecting all tracks, so that the inspection time can be greatly reduced. This effect is remarkable as the capacity of the optical disk medium increases.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an optical disk medium according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of sector management of an optical disk medium according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram of zone management of an optical disk medium in the embodiment of the present invention.

FIG. 4 is a diagram showing a relationship between a zone number and a track number in the embodiment of the present invention.

FIG. 5 is a configuration diagram of an information processing system according to the first to fourth embodiments of the present invention.

FIG. 6 is an explanatory diagram of detection determination by a dirt detection unit according to the embodiment of the present invention.

FIG. 7 is a configuration diagram of an information processing system according to the fifth to eighth embodiments of the present invention.

FIG. 8 is an explanatory diagram showing how dirt adheres to an optical disk medium according to the first and fifth embodiments of the present invention.

FIG. 9 is an explanatory diagram of setting a data recording area according to the first and fifth embodiments of the present invention.

FIG. 10 is an explanatory diagram of a record prohibition entry according to the first and fifth embodiments of the present invention.

FIG. 11 is an explanatory diagram of inspection information according to Embodiments 4 and 8 of the present invention.

FIG. 12 is a diagram illustrating a recording operation according to the first embodiment of the present invention.

FIG. 13 is an explanatory diagram of a dirt inspection operation according to the first to fourth embodiments of the present invention.

FIG. 14 is a diagram illustrating a recording operation according to the second embodiment of the present invention.

FIG. 15 is a diagram illustrating a recording operation according to the fifth embodiment of the present invention.

FIG. 16 is an explanatory diagram of a recording operation according to the sixth to eighth embodiments of the present invention.

FIG. 17 is an area configuration diagram of an optical disc medium according to Embodiment 9 of the present invention.

FIG. 18 is a configuration diagram of recording control information composed of recording prohibition entries according to Embodiment 9 of the present invention.

FIG. 19 is a configuration diagram of recording control information composed of inspection information and recording prohibition information according to Embodiment 9 of the present invention.

FIG. 20 is an area configuration diagram of a general optical disk medium.

FIG. 21 is a general defect management information configuration diagram.

FIG. 22 is an explanatory diagram of setting a data recording area by a conventional method.

[Explanation of symbols]

 Reference Signs List 1 optical disk medium 2 track 3 sector 4 control information area 5 data recording area 6 disk control information 7 defect management information 8 recording control information 10 data file 100 disk recording / reproducing apparatus 101 motor 102 head 103 analog signal processing means 104 servo control means 105 Modulation / demodulation means 106 error detection / correction means 107 dirt detection means 108 bus 109 memory 110 drive control means 111 external interface 120 processor 121 operation control means 122 data input / output control means 200 host device 201 CPU 202 processor bus 203 bus interface 204 memory 205 I / O bus 206 Hard disk drive 207 Display processing unit 208 Input unit 300 Information processing system

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) G11B 20/18 572 G11B 20/18 572C 572F 576 576C (72) Inventor Motoshi Ito Kazuma Kadoma, Osaka Prefecture 1006, Matsushita Electric Industrial Co., Ltd.

Claims (14)

[Claims] 1. A concentric or spiral track is formed, and the track is divided into a plurality of sectors, and data is recorded in sector units on a disk medium capable of recording and reproducing data in sector units. A disk recording method for recording, comprising: (1) performing a dirt inspection for determining that there is dirt when the amplitude value of a signal in a head for recording and reproducing data is smaller than a reference value for a certain period of time; 2) reporting the dirt detection area. 2. A disk recording apparatus according to claim 1, wherein the reference value for determining that there is a dirt in the dirt inspection uses a value calculated from a maximum value of a signal measured over the entire area of the disk medium. Method. 3. The disk recording apparatus according to claim 1, wherein the reference value used to determine that there is dirt in the dirt inspection is a value calculated from an average value of signals measured over the entire area of the disk medium. Method. 4. The disk recording method according to claim 1, wherein a value recorded in advance on a disk medium is used as a reference value for determining that there is dirt in the dirt inspection. 5. A concentric or spiral track is formed, and the track is divided into a plurality of sectors, and data is recorded in sector units on a disk medium on which data can be recorded and reproduced. A disc recording method for recording, comprising: (1) a step of designating a recording area in which data is recorded; (2) a step of performing a stain inspection by the method according to claim 1; and (3) a reported stain detection area. Changing the recording area specified in step (1) to an area in which no dirt is detected based on the time. 6. A concentric or spiral track is formed, the track is divided into a plurality of sectors, and data is recorded in sector units on a disk medium capable of recording and reproducing data in sector units. A disc recording method for recording, wherein (1) it is determined that there is dirt when an amplitude value of a signal in a head for recording and reproducing data continues for a certain period of time with respect to an area of the disc medium for a predetermined time And (2) recording data in an area in which no dirt is detected in the dirt inspection. 7. A disk divided into at least one or more zones in which concentric or spiral tracks are formed, the tracks are divided into a plurality of sectors, and data can be recorded and reproduced in sector units. A disk recording method for recording data in a sector unit on a medium, wherein a maximum burst length in the circumferential direction in which error correction is possible is 1 / k (k is 1) of a length when arranged in a radial direction. Integer greater than or equal to)
And calculating a track interval n from the track width, and performing a dirt inspection for determining that there is dirt when a predetermined period of time is continued for a period of less than a reference value for each n tracks in each zone of the disk medium. Disc recording method to do. 8. A disk medium on which concentric or spiral tracks are formed, the tracks are divided into a plurality of sectors, and data can be recorded / reproduced on a sector-by-sector basis, and an area in which dirt is detected. An information recording medium storing information indicating the following. 9. A disk medium on which concentric or spiral tracks are formed, said tracks are divided into a plurality of sectors, and data is recorded and reproduced on a sector-by-sector basis, and a dirt inspection is performed. An information recording medium storing information indicating whether or not the information is recorded. 10. The disk recording method according to claim 1, wherein a dirt detection area detected by the dirt inspection is recorded on a disk medium. 11. The disk recording method according to claim 1, wherein the area subjected to the stain inspection is recorded on a disk medium. 12. A disk recording method for recording data on a disk medium stored in a form that can be taken in and out of a cartridge, wherein a dirt check is performed based on information indicating that the disk medium has been removed from the cartridge. The disk recording method according to claim 1, wherein the method is performed. 13. A concentric or spiral track is formed, said track is divided into a plurality of sectors, and said data is written in said sector units to a disk medium capable of recording and reproducing data in said sector units. A disk recording device for recording, comprising: a dirt detecting means for determining that the disk medium is dirty when an amplitude value of a signal in a head for recording and reproducing a signal continues for a predetermined time in a state smaller than a reference value, A disk recording apparatus for performing recording by the disk recording method according to any one of claims 1 to 7. 14. A disk in which concentric or spiral tracks are formed, said tracks are divided into a large number of sectors, data can be recorded / reproduced on a sector-by-sector basis, and stored in a form that can be taken in and out of a cartridge. 13. A disk recording apparatus for recording data in units of sectors on a medium, comprising: means for determining whether or not the disk medium has been removed from the cartridge. A disk recording device characterized by performing.