JP2001195836A - Optical disk recording method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the error ending of alternate recording processing by the defective alternate regions within the same zone which are also defects when a wide range of the defective regions, such as flaws and fingerprints, exist on an optical disk. SOLUTION: When the defective block in a user region is detected, the number of trial times of the alternate recording processing within the same zone is limited and when the number of trial times is exceeded, the alternate recording processing to another zone is executed and therefore the normal execution of the alternate processing is made possible.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a defect management method for recording data on an optical disk composed of a plurality of zones having a data area and a defect replacement area for each zone.

[0002]

2. Description of the Related Art Generally, a rewritable optical disk such as a phase-change optical disk or a magneto-optical disk performs recording by adding an error correction code to data to be recorded. Therefore, even if a slight data error occurs in the reproduction process, the error can be corrected and correct data can be read. However, depending on the use environment of the disc, the years of use, and the like, dust adheres and scratches occur, and the disc material itself deteriorates due to repeated recording. In such a region, an error exceeding the correction limit of the error correction code occurs, and cannot be used for data recording / reproduction from the viewpoint of reliability (hereinafter, referred to as “data”).
Such an area is called a defective area). Therefore, conventionally, a rewritable optical disc generally has a spare area (hereinafter referred to as a defect replacement area) for supplementing a defective area in advance. The recording apparatus guarantees data reliability by recording data to be recorded in a defective area detected at the time of recording in a good area in the defect replacement area. Such a process is generally called a defect management process, and enables a rewritable disc to be handled as error-free.

[0003] As a conventional defect management method, a DVD-R defined by the international standard ECMA-272 will be described below.
AM (Digital Versatile Disc-Random Access Memor
y) will be described as an example with reference to FIGS.

FIG. 3 is a data structure diagram for explaining a data structure on a disk. The area on the disk is roughly divided into a lead-in area, a data area, and a lead-out area. The lead-in area further includes a control data area, a test area,
It consists of two defect management areas.

[0005] The control data area is an area recorded with irregularities, and cannot be rewritten. In the control data area, control data, such as the type and physical parameters of the disk, which is referred to by a device that performs recording / reproduction of the disk is recorded. The test area is a rewritable area, and is used for a recording process when a disc manufacturer performs a quality check before shipment and a recording process when a recording device adjusts control parameters of the device. Defect management information 1 and defect management information 2
Are rewritable areas in which the same contents are recorded. In the defect management information 1 and the defect management information 2, information on a defect area existing on the disk is recorded together with contents depending on the disk structure such as the number of zones.
Regarding the contents of the defect management information 1 and the defect management information 2,
It will be described later.

The data area is from zone 0 to zone 23
It consists of four zones. Each zone is further illustrated in FIG.
As shown in FIG. 3C, a user area in which user data is recorded and a defect replacement area for replacing a defective area in the user area.

The lead-out area includes defect management information 3, defect management information 4, and a test area. The same contents as the defect management information 1 and the defect management information 2 are recorded in the defect management information 3 and the defect management information 4. The test area in the lead-out area, like the test area in the lead-in area, is used for the purpose of checking the quality of the disc manufacturer and adjusting the control parameters of the disc recording / reproducing apparatus.

FIG. 3B shows a data structure of the defect management information 2. The defect management information 2 further includes a medium definition structure, a primary defect list, and a secondary defect list.
Media definition structure is DDS (Disc Definition Structure)
Information such as the number of defect management groups on the disk (the number of sets of user areas and defect replacement areas; 24 in ECMA-272, which is the number of zones), and the number of updates are recorded. Primary defect list is PDL (Primary Defect List)
The position information of the defective area detected at the time of physical formatting of the disk is recorded. The present invention relates to a defect management method for a defect area detected when recording user data after physical formatting of a disk, and a detailed description of a primary defect list is omitted. The secondary defect list is SDL (Secondary Defect Lis
The information for managing the defective area detected after the physical formatting of the disk is recorded as t).

FIG. 3D shows the data structure of the SDL. As the SDL identifier, 0002h (h is a hexadecimal number), which is a specific identification code for identifying the SDL, is recorded. The number of times the SDL has been updated is recorded in the SDL update count. As shown in FIG. 3E, the alternative area depletion flag is configured by a 24-bit flag corresponding to each zone. When this flag is set to 1, it indicates that all the defect replacement areas in the corresponding zone have been used. On the other hand, a zone in which the defect area depletion flag is set to 0 indicates that there is an unused area in the defect replacement area. In the PDL update count, the DDS and PDL update counts (DDS and PDL are updated simultaneously) are recorded.
As the number of registered SDLs, the number of registered defect position information following the number of registered SDLs is recorded. In FIG. 3D, the number of registered SDLs is k (k is a positive integer).

The first defective PSN is a PSN (Physical Sector) of the first sector of a defect area registered as a defect.
Number) is recorded. Here, the PSN is a unique number assigned to each sector to identify the sector on the disk. The first alternative PSN is a first defective PSN.
The PSN of the first sector of the good area in the defect replacement area that replaces the defect area registered as “1” is recorded. In this manner, the SDL registers the PSN of the head sector of the defective area and the head PSN of the replacement area as a set.

In FIG. 3D, k sets of defective PSNs and alternative PSNs are registered, and are arranged in ascending order of the PSNs of the defective area. All unused areas of the SDL are FFh
Is recorded. The relationship between the defective area and the replacement area will be described later with reference to FIG.

Next, the DV defined by ECMA-272
ECC (Error Correc) used for D-RAM disk
The option code block will be described with reference to FIG. The minimum unit of a rewritable disc defined by ECMA-272 is a sector, but the unit of data recording is an area consisting of 16 sectors called an ECC block.

FIG. 4A shows the data structure of an ECC block recorded on a disk. In one sector, 12 user data strings of 172 bytes (1 byte is 8 bits), 12 inner code strings of 10 bytes,
One 172-byte outer code string and one 10-byte inner / outer code string are recorded. These data are converted into an ECC block structure as shown in FIG. 4B when reading data from the disk. First, 12 user data strings and inner code strings included in 16 sectors are concatenated.
After that, the 16 outer code strings and the inner / outer code strings, which are distributed and arranged one by one in each sector, are connected. Here, the inner code string m (m is an integer from 0 to 15) is an error correction code added to the user data string m, and is used for performing horizontal correction in FIG. On the other hand, the outer code sequence is E
This is for performing vertical correction over the entire CC block. Also, the inner and outer code strings are located at overlapping portions in the horizontal and vertical directions, and are used both for correcting the outer code string in the horizontal direction and for correcting the inner code part in the vertical direction.

On the other hand, at the time of recording, conversely, after the apparatus generates an inner code, outer code, and inner / outer code for the user data string as shown in FIG. Disperse and record. As described above, ECMA-2
In the 72-DVD-RAM disk, generation of an error correction code or error correction processing using an error correction code cannot be executed in a single sector, so that the unit of recording and reproduction is 1 unit.
This is an ECC block composed of six sectors. Further, the registration of the defective area in the SDL described in FIG. 3 is also performed in ECC block units.

Next, defect replacement processing will be described with reference to FIG. FIG. 5A is an explanatory diagram showing the arrangement of defective areas in zone n (n is an integer from 0 to 23) and zone n + 1, and their replacement areas. The hatched area indicates a defective area (referred to as a defective block) in ECC block units. E to replace defective blocks
The CC block is shown as a substitute block. The defective block # 1 is replaced by a replacement block # 1 in a defect replacement area in the same zone. Therefore, when a recording request for the defective block # 1 occurs, the data to be recorded in the defective block # 1 is recorded in the replacement block # 1, and it is determined that the data has been recorded without error. In this way, by performing the substitution process, even if a defective area exists in the user area, it is possible to behave as if it were error-free. Therefore, the defect replacement area is used only for the replacement processing of the defect area generated in the user area, and is not used for storing data when there is no defect area.

A defective block generated in the user area is preferentially replaced by a substitute block in a defective substitute area in the same area. Further, the replacement blocks are sequentially allocated from the head of the defect replacement area. This is to facilitate selection of the next available alternative block. FIG.
(A) shows a case where all the defective replacement areas in the zone n + 1 are used as replacement blocks (some defective blocks and replacement blocks are omitted for simplification of the drawing). Replace defective block # 6 with block #
6 indicates that all the defective replacement areas in the zone 6 have been used. At this time, as shown in FIG. 5C, the disk recording device sets the replacement area depletion flag corresponding to zone n + 1 in the replacement area depletion flag of the secondary defect list to 1. Then, a new zone n + 1
If the defective block # 4 in the user area is detected as a defective block, the disk recording device recognizes from the replacement area depletion flag that the defective replacement area in the same zone is depleted, and detects the defect in another zone. Execute the substitution process on the substitution area. In FIG. 5A, the defective block # 4 in the zone n + 1 is a replacement block # 4 in the defect replacement area in the zone n.
Has been replaced. The position information of the defective block and the replacement block can be recognized by the recording / reproducing apparatus by registering the PSN of the first sector of the ECC block in the secondary defect list as shown in FIG. 5B. Can be.

FIG. 6 is an explanatory diagram for explaining the relationship between a defective block included in zone n on the disk and its replacement block. As mentioned earlier, the number of defective blocks is 16
It is composed of ECC blocks consisting of sectors. On the other hand, E
The number of sectors per rotation of the DVD-RAM defined by CMA-272 is 17 in zone 0. Therefore, like a defective block shown by oblique lines in FIG.
The defective block or the replacement block is an area that covers almost one round of the disk.

[0018]

However, as shown in FIG. 6, when an ECC block extending around one round of the disk is used as a unit of the replacement processing, scratches or fingerprints are generated in the user area of the zone and the defect replacement area. It may affect most ECC blocks.

DVD-R defined by ECMA-272
In the case of AM, the radial width of the area occupied by each zone is about 1.4 mm, of which the defect replacement area occupies about 0.075 mm. On the other hand, defect factors such as fingerprints and scratches usually cover a range of several cm in the radial direction. Therefore, almost all ECC blocks in a zone where a fingerprint or a scratch occurs are affected by the ECC block. Further, when these defect factors disturb the track following control signal (commonly called a tracking signal) of the recording / reproducing apparatus,
Problems such as the pickup of the apparatus jumping to an adjacent area occur, and correct recording becomes difficult.

In such a case, in the conventional alternative processing method, when the replacement block is detected as defective in the recording on the replacement block, the recording process on the next replacement block is repeated. However, since almost all ECC blocks in the zone including the defect replacement area are affected by scratches and the like as described above, a large number of recording processes occur until the replacement process succeeds. On the other hand, in the case of a recording drive connected to a personal computer, a time-out process occurs during the repetition of the above-described processing, and as a result, data cannot be normally recorded.

When such an event occurs, a very serious problem occurs for the user such that the recording apparatus stops responding (hangs up) or the recorded data is not recorded.

[0022]

In order to solve the above-mentioned problems, an optical disk recording method according to the present invention comprises a plurality of zones each having a data area and a defect replacement area. An alternative recording method for an optical disc in which the defective area and the position information of the good area are recorded in a defect management area while being alternately recorded in a good area in the area, Performing a replacement recording process on the unused area of the defect replacement area in the same zone as the defective area until the normal recording can be performed within a predetermined number of times; And an out-of-zone alternative recording step of performing an alternative recording process on a defective alternative area in another zone when data cannot be recorded normally. It is characterized in.

[0023] In addition to the optical disk recording method, the optical disk recording method according to the present invention further comprises a step of, when the alternative recording process cannot be normally performed within a predetermined number of times, depleting the defective replacement area in the zone where the alternative recording process could not be performed. A defect replacement area depletion information updating step of setting the defect replacement area depletion information indicating whether or not the information has been exhausted.

In the optical disk recording method according to the present invention, in addition to the optical disk recording method, in the in-zone alternative recording step or the out-of-zone alternative recording step, a predetermined zone is determined from the zone in which the alternative recording process could not be normally executed. The method is characterized in that the method further comprises a replacement zone calculation step of calculating a defect replacement area in a zone separated by a number as a target of the next replacement recording process.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of a disk recording drive according to an embodiment of the present invention. The host control unit 101 is a personal computer, and communicates with a disk recording drive 110 connected via a drive I / F bus 102 to record and reproduce data on a rewritable disk 130. Drive I / F bus 102
Is a SCSI (Small Computer System Interface) bus which is a bus for peripheral devices of a personal computer. The rewritable disc 130 has an E as described above.
This is a DVD-RAM defined by CMA-272.

The disk recording drive 110 further stores
I / F control means 111 for transmitting and receiving commands and data according to the CSI protocol, and data buffer 112 as a memory for temporarily storing recording data and reproduction data.
And a data recording / reproducing means 113 for executing recording / reproducing processing on the rewritable disk 130, and interpreting a command requested from the higher-level control means 101 via the I / F control means 111 to execute the data recording / reproducing means 113. It comprises a recording / reproduction control unit 114 for controlling, a substitution control unit 120 for executing a substitution process when a defective block is detected at the time of recording, and a control bus 115 for connecting each unit and communicating control information.

The substitution control means 120 further includes a substitution block calculation means 121 for calculating the PSN of the substitution block in the substitution processing, and a substitution within the zone which is a memory for counting the number of times the substitution processing is executed in a single zone. A counter 122, an alternative recording processing counter 123 for counting the total number of alternative recordings inside and outside the zone, and a zone for performing the next alternative recording when the alternative recording in a single zone cannot be performed normally. Alternative zone calculation means 124
And the alternative zone information 125 which is a memory for storing a zone number for calculating an alternative block.

Next, an alternative processing operation of the disk recording drive 110 in the present embodiment will be described with reference to FIG. FIG. 2 is a flowchart showing an alternative processing operation of the disk recording drive 110. Here, only the processing after the detection of the defective area when the recording processing of the user area is performed according to the instruction of the higher-level control unit 101 will be described. The other processing is the same as that of the conventional recording drive, and thus the description is omitted. Also, it is assumed that the secondary defect list recorded on the rewritable disk 130 is read at the time of startup and stored in a part of the data buffer 112. Hereinafter, the alternative processing will be described in the order of processing.

The I / F control unit 111 that has received the recording request from the host control unit 101 stores the recording data in the data buffer 112 and sends the recording request to the recording / reproduction control unit 114. The recording / reproducing control unit 114 controls the data recording / reproducing unit 113 to record the recording data stored in the data buffer 112 on the rewritable disk 130 and to reproduce the data to confirm whether or not the data was correctly recorded. At this time, when the data recording / reproducing means 113 detects that the data could not be recorded normally, it notifies the recording / reproducing control means 114 of an error end. Upon receiving the error end notification, the recording / reproduction control unit 114 starts the substitution process in cooperation with the substitution control unit 120 (S200).

When executing the substitution process, the recording / reproduction control means 114 sets 16 to the intra-zone substitution counter 122 in the substitution control means 120 if less than 16 blocks remain in the same zone and less than 16 blocks If only remains, set the value at that time. This means that even if an error has occurred in the replacement recording for one replacement block in the same zone, the retry of the replacement recording for the set number of times is performed for the next replacement block. Further, the recording / reproduction control unit 114 sets the substitute recording process counter 123 to 3
Set 2. This occurs when the recording process to the replacement block repeatedly causes an error regardless of inside or outside the zone.
This means that retry is performed up to twice. That is, it means the total number of times of retry of the alternative recording. Further, the recording / reproduction control unit 114 sets the zone number where the defective area where the recording has failed exists in the alternative zone information 125 (S201).

After that, the recording / reproducing control unit 114 requests the substitute block calculating unit 121 to calculate a substitute block for performing a substitute recording process next. The substitute block calculating means 121 acquires a zone number for calculating a substitute block from the substitute zone information 125. Thereafter, the substitute block calculating means 121 refers to the secondary defect list stored in the data buffer 112, calculates the next available substitute block in the defect substitute area of the zone of the acquired zone number, and obtains its position information. (PSN) is returned to the recording / reproduction control means 114 (S202).

The recording / reproducing control means 114 controls the data recording / reproducing means 113 to record the recording data in the received substitute block. Data recording / reproducing means 113
Returns a normal end if the recording is successful, and returns an error end if an error occurs to the recording / reproduction control means 114 (S203).

The recording / reproduction control means 114 determines the returned processing result, and if it determines that the processing has been normally completed, the processing branches to step S218, and the alternative processing is normally completed. On the other hand, if it is determined that there is an error, the flow branches to the processing of S205 (S204).

The recording / reproduction control means 114, which has determined that the alternative recording processing has ended in error, returns the in-zone alternative counter 12
2 and the alternative recording process counter 123 are respectively decremented by 1 (S205).

The recording / reproduction control means 114 determines whether or not the intra-zone substitution counter 122 is zero. If it is determined that it is not 0, the flow branches to the process of S202, and the alternative recording process is retried for the next available alternative block in the same zone. If it is determined to be 0, it is determined that the currently executed defect replacement area is almost defective, and the process branches to S207 to execute replacement processing in another zone (S206).

In performing the alternative recording process for another zone, the recording / reproduction control means 114 sets the alternative area exhaustion flag area on the secondary defect list stored in the data buffer 112 to the alternative area exhaustion corresponding to the current alternative zone. The flag is set to 1 (S207).

The recording / reproduction control unit 114 sets 3 in the zone substitution counter 122. This means that retry is performed up to three times even if an error occurs in the substitute recording process in the substitute zone where the substitute process is executed next. This value is set to a small value so that, when a defective area covers a wide area such as a fingerprint, it is possible to retry as many zones as possible within a predetermined time (S208).

The recording / reproducing control unit 114 adds information for requesting calculation of a substitute block from another zone to the substitute block calculation unit 121 when sending a substitute block calculation request for performing a substitute recording process next. Send out. The substitute block calculating means 121 sends the current substitute zone number to the substitute zone calculating means 124 together with the substitute zone calculating request. The substitute zone calculation means 124 that has received the substitute zone calculation request adds 5 to the received substitute zone number. This is because the processing can be successfully performed at high speed by accessing a zone that is not adjacent to the zone but five zones apart in consideration of the influence of a fingerprint or the like.

Further, if the number of the substitute zones after adding 5 exceeds 24, the substitute zone calculating means 124 subtracts 24 from the substitute zones. This is a process for correcting the rewritable disc 130, which has only a zone up to the zone 23. The alternative zone calculation unit 124 that has completed the calculation of the alternative zone returns the calculated alternative zone number to the alternative block calculation unit 121 (S209 to S211).

Upon receipt of the substitute zone number, the substitute block calculating means 121 converts the substitute zone number into the substitute zone information 12.
5 is stored. Then, the substitute block calculating means 121
Calculates the first PSN of the next available alternative block in the defect replacement area of the replacement zone with reference to the secondary defect list in the data buffer 112, and
14 (S212).

The recording / reproducing control means 114, having received the head PSN of the substitute block, controls the data recording / reproducing means 113 to execute recording on the substitute block and perform reproduction to check whether or not the recording has been normally performed. I do. The data recording / reproducing means 113 returns to the recording / reproducing control means 114 a normal end when the recording has been performed normally and an error end if an error has occurred. The recording / reproduction control unit 114 determines the processing result, and if the processing ends normally, branches to the processing of S218, and ends the defect replacement processing normally. On the other hand, if it is determined that the processing has ended with an error, the process branches to S215 (S2).
13, S214).

The recording / reproduction control means 114, which has determined that the alternative recording processing has ended in error, returns the in-zone alternative counter 12
2 and the alternative recording process counter 123 are respectively decremented by 1 (S215).

The recording / reproduction control means 114 reads an alternative recording counter value from the alternative recording processing counter 123 and judges it. If the substitute recording counter value is not 0, the process branches to the process of S217 to determine whether or not to retry. If the substitute recording counter value is 0, it is determined that the rewritable disk 130 is a disk on which data cannot be correctly recorded despite 32 times of the substitute recording process, and the process branches to S219 to terminate the defect replacement process with an error. (S216).

The recording / reproduction control means 114 reads the intra-zone substitution counter value from the intra-zone substitution counter 122 and makes a determination. If the intra-zone substitution counter value is 0, it is determined that the current substitution zone is almost in a defective state, and the process branches to S207 to continue retrying the substitution recording in another zone. On the other hand, if it is determined that the value is not 0, the process branches to S212 to continue the retry in order to retry the alternative recording process for the next alternative block in the current zone (S217).

When the alternative recording process is completed normally within 32 times in the above process, the recording / reproduction control unit 114 sets the I / F
A normal end is reported to the control means 111. The I / F control unit 111 reports the normal end to the host control unit 101 via the drive I / F bus 102, thereby completing the data recording normally (S218).

On the other hand, if the data could not be recorded correctly despite the 32 retries, the recording / reproduction control means 114 reports an error end to the I / F control means 111. The I / F control unit 111 controls the drive I / F bus 10
By reporting an error end to the upper-level control unit 101 via the communication unit 2, it is notified that data recording has failed.

This concludes the description of the defect replacement processing according to the present embodiment.

As described above, according to the recording method of the present embodiment, even if the entire zone including the defect replacement area is defective due to a scratch, a fingerprint, or the like, the retry to the defect replacement area in another zone is performed. , The alternative processing can be executed normally.

As described above, according to the recording method of the present embodiment, after the alternate recording process in one zone is repeated a predetermined number of times, even if the defective alternate area in that zone is not exhausted, the alternative area exhaustion flag is set. To set to 1,
Later, when a new defective block is detected in that zone, the replacement process from another zone is executed without performing the replacement process in the same zone, so that the defect replacement process can be executed at high speed.

As described above, according to the recording method of the present embodiment, when performing the substitute recording process in another zone, the substitute process is performed for a zone that is a plurality of zones away from the current zone. It is possible to complete the replacement process at high speed even for a rewritable disc having a defect over a wide area in a plurality of zones.

In the recording method according to the present embodiment,
The initial value of the substitute counter in the zone was set to 16, the initial value of the substitute counter in the zone at the time of trial in another zone was set to 3, and the initial value of the substitute recording counter was set to 32. Needless to say, other values may be used. Furthermore, a function of setting these numerical values may be added to the non-volatile memory so that different values depending on the use environment can be set from the host computer.

The substitute block calculating means 121 in the present embodiment calculates the substitute zone by adding 5 to the current substitute zone in S209, but uses another calculation method according to the characteristics such as the defect. Is also good. For example, by performing the processing in the order of 2 additions, 4 subtractions, and 6 additions, the processing may be performed on the preceding and succeeding zones in the order closer to the current alternative zone.

The components of the disk recording drive 110 according to the present embodiment need only be capable of realizing their respective functions, and it is not necessary that each component is independently implemented by hardware. For example, it goes without saying that the configuration means may be configured by a combination of a microcontroller and a software program.

[0055]

As described above, according to the recording method of the present invention, even if the entire zone including the defect replacement area is defective due to a scratch, a fingerprint, or the like, rewriting to the defect replacement area in another zone is performed. By performing the trial, the alternative processing can be executed normally.

After the alternative recording process in one zone is repeated a predetermined number of times, the replacement area depletion flag is set to 1 even if the defect replacement area in that zone is not exhausted. When a block is detected, the replacement process from another zone is performed without performing the replacement process in the same zone, so that the defect replacement process can be performed at high speed.

Further, when performing the alternative recording process in another zone, the alternative process is performed for a zone that is a plurality of zones away from the current zone. The substitution process can be completed at high speed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a disk recording drive according to an embodiment of the present invention.

FIG. 2 is an operation explanatory diagram of an alternative recording process in the recording method according to the embodiment of the present invention;

FIG. 3 is a layout diagram for explaining a data structure of a conventional rewritable disc.

FIG. 4 is an explanatory diagram for explaining an ECC block of a conventional rewritable disc.

FIG. 5 is an explanatory diagram for explaining a conventional rewritable disk defect replacement process;

FIG. 6 is an explanatory diagram for explaining the arrangement of defective blocks and substitute blocks in a conventional rewritable disk.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 Upper control means 102 Drive I / F bus 110 Disk recording drive 111 I / F control means 112 Data buffer 113 Data recording / reproduction means 114 Recording / reproduction control means 115 Control bus 120 Substitution control means 121 Substitution block calculation means 122 Substitution in zone 123 Alternative recording processing counter 124 Alternative zone calculation means 125 Alternative zone information 130 Rewritable disc

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification FI FI Theme Court ゛ (Reference) G11B 20/18 572 G11B 20/18 572C 572F (72) Inventor Motoshi Ito 1006 Odakadoma, Kadoma City, Osaka F term (reference) in Matsushita Electric Industrial Co., Ltd. 5D044 CC04 DE03 DE62 5D090 AA01 BB04 CC01 CC18 DD03 DD05 EE01 FF27 FF38 GG11 HH01

Claims (3)

[Claims] A plurality of zones each including a data area and a defect replacement area, wherein a defect area in the data area is alternately recorded in a good area in the defect replacement area, and positional information of the defect area and the good area is provided. Is a recording method of an optical disc recorded in the defect management area, in the alternative recording processing of the defect area in the data area, the alternative recording processing to the unused area of the defect substitution area in the same zone as the defect area, An intra-zone alternative recording step that is executed until recording can be performed normally within a predetermined number of times; An out-of-zone alternative recording step of performing a recording process. 2. The recording method according to claim 1, further comprising: determining whether a defective replacement area in a zone in which the replacement recording processing has not been performed is depleted when the replacement recording processing has not been normally performed within a predetermined number of times. An optical disc recording method comprising: a defect replacement area depletion information updating step of setting the meaningful defect replacement area depletion information to a depleted state. 3. The recording method according to claim 1, further comprising: in the in-zone replacement recording step or the out-of-zone replacement recording step, a zone separated by a predetermined number from a zone in which the replacement recording process could not be normally executed. An optical disc recording method, comprising: a replacement zone calculation step of calculating a defect replacement area as a target of a next replacement recording process.