JP2003249030A - Information recording and reproducing device - Google Patents

Information recording and reproducing device

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Publication number
JP2003249030A
JP2003249030A JP2002047934A JP2002047934A JP2003249030A JP 2003249030 A JP2003249030 A JP 2003249030A JP 2002047934 A JP2002047934 A JP 2002047934A JP 2002047934 A JP2002047934 A JP 2002047934A JP 2003249030 A JP2003249030 A JP 2003249030A
Authority
JP
Japan
Prior art keywords
area
recording
replacement
areas
spare
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2002047934A
Other languages
Japanese (ja)
Inventor
Kazuhiko Hosokawa
和彦 細川
Original Assignee
Ricoh Co Ltd
株式会社リコー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ricoh Co Ltd, 株式会社リコー filed Critical Ricoh Co Ltd
Priority to JP2002047934A priority Critical patent/JP2003249030A/en
Publication of JP2003249030A publication Critical patent/JP2003249030A/en
Application status is Pending legal-status Critical

Links

Abstract

(57) [Summary] [PROBLEMS] To grasp the quality of a spare area in advance before receiving a data recording or reproduction request from the outside, and prevent a continuous spare processing sequence due to a defect in the spare area. A controller reproduces an unused area of an SA area of an optical disc in the background when a recording or reproduction command is not issued from a host computer for a certain period of time. The defect address of the defect area is registered as a recording prohibited area. After the registration of the recording prohibited area in the unused area in the replacement area is completed, when performing data replacement or recording based on a request from the host computer and performing the replacement process, the recording prohibited area registered in the replacement management table is used. Use other normal areas without using them.

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a CD-R / RW
Information recording / reproducing devices such as drive devices and DVD drive devices
About the installation. [0002] An optical disk device as an information recording / reproducing device
Now, let's look at defects during optical disc manufacturing (hereinafter, “congenital defects”
Light) caused by repeated scratches and erased records.
Defects due to disk deterioration (hereinafter "acquired defects")
Even if a failure such as
A defect management system has been introduced to
There are things that are. Data area on optical disc
(Data Area: DA) and the replacement area
A pair area (Spare Area: SA) is prepared
The spare area is used to replace the defective area.
You. Usually there is one or more spare areas and data areas.
Depending on the standard, a spare area and data
And a plurality of data regions alternately exist. In addition,
Combines disk defect information with replacement information for all spare areas
A replacement management table is separately provided. In such an optical disk device, a host
If there is a data recording request from the remote computer,
Refer to the replacement management table to check the host
There is a defective area in the recording area requested by the computer.
Investigate whether or not. And recording of the range including the defective area
If requested, same as data recorded in defective area
The replacement data is also recorded in the spare area, which is the spare area.
Address information of the defective area and the replacement address of the replacement area
Registration information (replacement information) in the replacement management table
You. On the other hand, data is recorded as described above.
Request for playback of optical disc from host computer
First, refer to the replacement management table and play
Replaced address information is included in the data range to be replaced
Check whether the replacement address information is included.
The data area and the defect address of that data area.
From the spare area of the replacement address information corresponding to the
Play the data and transfer it to the host computer
The mechanism is In the above-described replacement processing, a spare area is used.
Acquired defect occurred during recording for
In such a case, reconnect to another address in the spare area.
Will be replaced. For example, if the optical disc is scratched
Or burst due to errors due to optical disc deterioration
An error has occurred and the entire spare area is
If the address is defective, the same
Recording / reproducing even if the address is shifted within the pair area
Errors may occur one after the other and successive alternations occur.
Could be Thus, later in the spare area
Recording performance may be reduced in the presence of natural defects
There was ability. Therefore, when recording or reproducing data, optical data
Reads the address information of each sector recorded on the disk.
A missing sector is regarded as a defective sector, and the defective sector is
If there are three or more consecutive sectors, the consecutive defective sectors
Recording / reproducing apparatus (for example, Japanese Patent Application Laid-Open
000-090585). [0007] However, the conventional
The information recording / reproducing device records or reproduces information from a host computer.
Is the first sector on the optical disk when a playback request is made
Is to check the quality of the replacement area.
The quality cannot be grasped and the defect in the replacement area
Useless recording processing due to continuous replacement processing sequence
Issue with performance degradation
was there. The present invention has been made to solve the above problems.
Data recording or playback request from outside
Before there is, grasp the quality of the replacement area in advance and
To prevent a continuous replacement sequence due to defective
aimed to. [0008] The present invention is directed to the above objects.
One or more replacement areas in the information recording area to achieve
Information on a recording medium with
Record or playback, and detect the defective area during the recording or playback.
Replaces the information of the defective area with the replacement area
An information recording / reproducing apparatus comprising:
Is not instructed from outside
In the meantime, the unused area of the spare area of the recording medium is reproduced,
When replacing a defective area found by the reproduction
Recording prohibited area registration means to register as a recording prohibited area
It is provided. Further, the recording prohibited area registering means may be provided with
For each one or more replacement areas,
When the ratio of the falling area exceeds a predetermined ratio, the replacement area
It is preferable to provide means for registering the area as a recording prohibited area.
Further, one or more of the above-mentioned one or more
Of defective areas in the number of replacement areas exceeds a predetermined ratio
The unused area of the spare area of the recording medium
It is preferable to provide a means for registering as a recording prohibited area. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;
This will be specifically described based on the following. FIG. 1 shows one embodiment of the present invention.
CD-R / RW drive device and host computer according to an embodiment
FIG. 2 is a block diagram showing a system configuration including a computer.
You. The CD-R / RW drive device 1 includes an optical disc 13
To the spindle motor 2 for rotating the
Optical pickup 4 for irradiating laser light
You. The rotation control of the spindle motor 2 is performed by the rotation control system unit 3.
The optical pickup 4 is controlled by an optical pickup control system.
This is performed in the section 8. A coarse movement motor 5 drives the optical pickup 4
This is a motor for moving the disc 13 in the radial direction.
The coarse motor control system 6 controls the motor 5.
In addition, the signal processing system unit 7 receives the signal from the optical pickup 4.
Transmission and reception of data for processing and recording on the optical disc 13
I do. The controller 9 controls the entire apparatus.
Yes, the non-volatile memory 11 operates the controller 9
Programs are recorded.
The disc ID of the disc 13 and opening of a predetermined position of the optical disc 13
Start (Start) address information, End (End) address
Buffer memory 10 is an area for storing
This area is used to temporarily store playback and recording data.
You. That is, the CD-R / RW drive device
The device 1 has one or more replacement areas in the information recording area.
Record or record information in a predetermined recording unit
Playback and detecting a defective area during recording or playback.
Means for replacing the information of the defective area with the replacement area
An information recording / reproducing apparatus provided with the controller 9
However, an instruction to record or reproduce information on the recording medium
The unused area of the spare area of the above recording medium is
The defective area found by the reproduction.
Record prohibition registered as a record prohibition area when performing replacement processing
Stopping area registering means for each of the one or more replacement areas.
Ratio of defective area in the replacement area exceeds
Register the replacement area as a recording prohibited area.
Means and a defect area in the one or more replacement areas.
When the area ratio exceeds a predetermined ratio, the recording medium
Register all unused areas in the replacement area as recording prohibited areas
Acts as a means. A defect management system is introduced for an optical disc.
It is assumed that the CD-RW disc
Rainier: MRW
DVD-RAM discs and the like are known.
The description of the present invention is based on a typical MRW as a replacement process.
Will be described as an example. MRW is the defect address by the device.
Management, sector size fixed at 2 Kbytes, frame
Standardize the command set and provide standard support by OS
It will be realized. MRW is an early version of optical discs.
By performing the conversion work in the background,
It takes a lot of time to initialize like a Ket Light
No, the user inserts the purchased optical disc into a CD-R / RW
Be ready to use just by putting it in a live device
Is also a feature. FIG. 2 shows recording on an optical disk based on MRW.
FIG. 3 is an explanatory diagram showing a format of an area. This optical disc
A defect management system based on MRW is
Have. According to MRW, the recording area is a lead-in area.
A (lead-in area), program area (program
Area), from the lead-out area (lead-out area)
Made up of The program area contains multiple spare areas.
A (Spare areas) SA1 to SAn and their respective spare areas
Each data data assigned to be paired with SA1 to SAn
Rear (data area) DA1 to DAn and sub-table area
(Secondary Table Area: ST
A). This spare area and data
The rear is used in pairs. For example, in the data area DA1
The replacement area is the spare area SA1, and even if the spare area
Data area even if there is a lot of free space in SA1
Do not replace DA2. On the other hand, the number of replacements of the data area DA1 is large.
The spare area SA1 has been used up
If the replacement of the data area DA1 is the spare area SA
2 is possible. At the end of the program area
One STA is a table for defect management, which is a CD.
-Defect management software provided so that it can be read from ROM.
Cable in the lead-in area
Main table area (Min Table Area: M
TA) spare area (exact information is recorded)
Area). Provided in the lead-in area
The assigned MTA is a replacement management table. FIG. 3 is a flowchart of the replacement management table (MTA).
It is explanatory drawing which shows a format. This replacement management table
Is the main data table (Main Data Tabl)
e: MDT) is 0 and the defect table block (De
fact TableBlocks (DTB) is 0
Therefore, the text regarding the spare area SA1 shown in FIG.
Table. Thus, when MDT is 0 and DTB is 1,
Shows a table corresponding to the spare area SA2,
Hereinafter, MDT ranges from 0 to 7, and DTB ranges from 0 to 7.
Therefore, there are MDT7 and DTB7 at the maximum,
Spare areas SA1 to SA64 by combining DTB
Can have a total of 64 tables. Entry type of this replacement management table
(Entry Type) is the real location entry
Re (Relocation Entry)
Refer to the defective address and replacement address
To know the replacement information of the spare area SA1
Can be. In the case of FIG.
A0 to 005C0, and their data are
The fact that dress 400
You. If the entry type is free entry (Free entry)
(Entry) indicates that the replacement area can be used.
Indicates the address of unused spare area SA.
If the entry type is Unusable Entry (Unusab
(le Entry) is the defect area of the defect area.
Address, which is prohibited to use (address of recording prohibited area).
Dress). Including future prohibited addresses
If there is a request for recording, it will be replaced. As described above, this replacement management table is
Area A1 and spare area S
A1 is the area of each of the addresses 005A0 to 005C0.
If the information is
The address has been replaced by
If each of the areas 28 is a defective address and is a recording prohibited area
I understand that. Lack of congenitality of optical disk in MRW
The failure becomes a mechanism to register when the optical disk 13 is initialized.
ing. Recording error during initialization / verif performed during initialization
Replace the address where the playback error during the
Registered in the unusable entry of the
Set the dress to the write-protected address. Acquired defects
Error during recording / verification after recording
If the replacement takes place as a result,
Add the error occurrence address and its replacement address to the
Record. Next, of the data replaced by the MRW,
The reproduction process will be described. FIG.
Format for sending the generated data to the host computer.
It is a figure showing an example of a mat. For example, the data shown in FIG.
When the data area DA1 is reproduced, first, the replacement management data
Table, there is a defective address in the data area DA1.
Check if it exists. Defective address did not exist
Read data in all areas in data area DA1.
And transfer all data to the host computer 12
finish. On the other hand, the defective address is stored in the replacement management table.
If it exists, the normal area of the data area DA1 is
After reading the information, the replacement address of the spare area SA1
Information is read from the area of
Instead, the data is transferred to the host computer 12. You
That is, as shown in FIG.
If ATA2 and DATA5 are defective areas, DATA0,
DATA1, DATA3, DATA4, DATA6, D
ATA7 is read out and replacement of spare area SA1 is performed.
Read DATA2 and DATA5 that were replaced in replacement 2 respectively.
And put each data in the order of DATA0-DATA7
Rearrange the host computer in the format shown in FIG.
To the data 12. Next, the CD-R / RW drive shown in FIG.
The processing according to claim 1 of the present invention in the
I will tell. FIG. 5 shows the CD-R / RW drive 1
Showing a process according to claim 1 of the present invention.
FIG. The controller 9 performs a step (“S” in the figure)
1) Optical disk in CD-R / RW drive device
Is inserted from the host computer in step 2
When the recording or playback (Read / Write) command is fixed
Judgment is made within a certain period of time
If so, go to step 8. On the other hand, the host computer
Data has not been issued for a certain period of time
If so, go to step 3 and play in the background
(For example, specify the first SA1
Unused area in the SA area (replacement area: SA)
It is determined whether or not. In this judgment, in terms of MRW,
Entry in the specified SA area of the replacement management table
It is good to check if there is (Free Entry)
No. If there is unused space (free entry is found
If there is no unused area, go to step 4
If so, go to step 7. In step 4, the designated SA area is not used.
Play the area in the background, and in step 5
Determine whether the area was found. In this judgment,
If a playback error is detected by playing back the
Judge that it was found. When a defective area is found
Is the defect address of the defective area in the replacement management table in step 9.
Register the address as a recording prohibited area (use prohibited area),
Proceed to step 6. Speaking of MRW, the replacement management table
To register a defective address in the useable entry
Become. Also, no defective area was found in step 5.
If so, proceed to step 6. Whether this area is defective or not
Is determined by whether or not a playback error has occurred during playback.
good. In step 6, the unused area in the designated SA area is used.
It is determined whether or not all the playback areas have been played, and the playback has been completed.
To step 7 if not, go to step 5
It returns and continues the above-mentioned processing. In step 7, the optical disc
In the background, all SA areas in the replacement area on the
Judge whether or not the birth is completed, and play back all SA areas and finish
When the SA area that has not been reproduced
If so, go to Step 10 and re-run in the background
Generated SA area (for example, when the spare area SA1 is completed)
Next, specify the spare area SA2) and return to step 3.
Thus, the above processing is repeated. In the above processing, the unused area in the spare area
After registering the recording prohibited area in the area,
Data playback or recording based on computer requests
When performing the replacement process, the controller 9
Without using the recording prohibited area registered in the replacement management table
Use another normal area (usable area). like this
Automatically when the optical disc is inserted
An acquired defect was found in the unused area of (SA), and
Unusable area before using the defective address in replacement processing
Can be registered in the replacement management table. did
As a result, the replacement process is
The probability of occurrence of a change in the replacement area (SA) is reduced.
The probability of performing the replacement process continuously decreases, and the record (replacement)
Performance can be improved. Next, as a result of performing the above-described processing,
If a number of acquired defects are found in the area, the acquired
The presence of a large number of defects means that the disc
May be due to deterioration of the
Area is unreliable for data reproduction and recording
From when the replacement process is performed on the replacement area,
When accessing an unused area in the spare area,
Errors occur when recording or recording
Therefore, it is better not to use such a replacement area as much as possible.
No. FIG. 6 shows a usable area in the spare area SA.
Format diagram showing an example of the area and the recording prohibited area
is there. In the same figure, the usable area in the spare area SA1 is shown.
(Ads registered in the free entry of the replacement management table
Area is marked with a circle, and the recording prohibited area (replacement management
The address registered in the unusable entry of the cable
Area) is indicated by a cross. As described above, in the spare area SA1,
If there are many defects and there are many write protected areas (for example, spare
50% or more of the recording prohibited area in the rear SA1
), The unused area of the spare area SA1 is accessed.
Error when accessing or recording when recording
Since errors easily occur, spare area SA1 should be
It is better not to use it. Therefore, the above operation was performed.
As a result, an acquired defective area was found and
If the percentage of defective areas exceeds the specified value (and
Indicates that the number of defective areas exceeds a predetermined value),
Replacement management text for all unused areas
It is good to register in the table. Next, the CD-R / RW drive shown in FIG.
The processing according to claim 2 of the present invention in the
I will tell. FIG. 7 shows the CD-R / RW drive device 1.
Showing a process according to claim 2 of the present invention.
FIG. This processing is performed after the processing shown in FIG.
U. After the processing shown in FIG.
In step 21, the first replacement management table is referred to (for example, SA1
Of the specified SA area (see the
Replacement area: SA), and obtains the number of defective areas. This defect area
The number of areas is indicated in the replacement management table of the specified SA area.
Check the usable entry, and find the address
What is necessary is just to check the number of addresses (defective addresses) in the area A. In step 22, the vacancy in this spare area is
Determines whether the ratio of the number of
You. The predetermined ratio is, for example, 5 in the SA area.
It is good to make it 0%. Therefore, the above acquired defect area
Based on the number and total number of areas in the replacement area.
Judge whether the ratio of the number of pits exceeds 50%
You. Defective area in the replacement area as determined in step 22
If the ratio does not exceed the specified ratio,
Proceed to step 23. In the replacement area as determined in step 22
If the ratio of the number of defective areas exceeds the specified ratio
If so, proceed to step 24 to replace this designated SA area.
Area registered as available area in the management table
Area is changed to a recording prohibited area, and the entire SA area is recorded.
Register as a recording prohibited area. For example, in the case of MRW,
Entry of the corresponding SA area in the replacement management table
All should be changed to unusable entries. afterwards
Proceed to step 23. FIG. 8 shows a replacement in which an unused area is entered.
Change the management table and its unused area to a record prohibited area
It is a figure which shows the format at the time of each. In addition,
In the figure, for the sake of simplicity,
Each column of entry type, defect address, and replacement address
Only shown. As shown in FIG.
Bull replacement address 00421-004FF registered
The free entry in the entry type column is shown in (b) of FIG.
As shown, change to an unusable entry
Therefore, the replacement area managed by the replacement management table
The entire use area is registered as a recording prohibited area. In step 23 of FIG.
The above processing is completed for the replacement management table in the area A.
Is determined, and if not completed, the process proceeds to step 25.
Proceed to specify the replacement management table for the next SA area, and
Return to Step 21 and repeat the above process.
This processing ends. Thus, it corresponds to each replacement area
Refer to each replacement management table in order from the top, and
Defective area in each spare area based on the management table
Exceeds the specified ratio, the replacement management table
Change the registration of all registered unused areas to recording prohibited areas
You. In the above-described processing, the unused area in the spare area is used.
Criteria for registering all of the
The defective area in the replacement area
Exceeded the value, but registered in the replacement management table
The number of defective addresses is counted, and the number reaches a predetermined value.
It may be determined whether or not the number is exceeded. This place
In the case of this process, the replacement management table is referenced,
Examine the sub entry column and manage its replacement management table
The number of defective addresses in the SA area is counted. further,
Check whether the number of defective addresses exceeds a predetermined value.
to decide. For the predetermined numerical value, for example, 128 is set in advance.
Good to do. That is, a defect indicating a defect location in the SA area
Checks whether the number of addresses exceeds a predetermined number: 128
Bell. Then, if the number of defective addresses exceeds a predetermined value,
The unused area in the replacement management table for that SA area.
All areas registered as usable areas in the area are recorded
Register again in the prohibited area. Other processes are shown in FIG.
This is the same as the processing of each step. FIG. 9 shows that all unused areas are designated as recording prohibited areas.
FIG. 7 is a format diagram showing the position of the SA area registered by registration.
You. As shown in FIG.
Unused area of pair area SA1 and spare area SA2
If all are registered in the recording prohibited area (indicated by the arrow in the figure),
Replace the data areas DA1 and DA2 with the spare area S
A3 may be used. Then, in the above-described processing,
After registering the recording prohibited area in the unused area,
Data playback or
When the recording is performed and the replacement process is performed, the controller 9
Indicates all unused areas in the replacement management table at the replacement destination.
If the entry is in a prohibited area, another replacement area
use. In this way, many acquired defects are found.
The replacement area (SA) that has been used
By prohibiting the replacement process to (SA), the replacement area
(SA) can be reduced, so the replacement area (S
A) Recording and playback errors that occur when accessing A)
Recording and playback reliability and performance.
Month can be improved. Next, as a result of performing the above-described processing,
If many acquired defects are found in the area,
The entire disc may be scratched or degraded
Conceivable. In any case, record on that optical disc in the future
If not, the replacement process is likely to occur frequently and
May also be reduced in reliability. FIG. 10 shows that a number of acquired defects are found in the replacement area.
An example of the format of the recording area of the found optical disc is shown.
FIG. In the figure, together with each area of the recording area,
Of the defective sectors (defective areas) in the replacement area of
All unused areas are prohibited from being recorded by the above process
And the replacement area registered in the stop area. In addition, record
The reference value for determining the prohibited area exceeds the above-mentioned predetermined value 128.
Is shown. When using a new optical disc,
It is normal that almost no defects etc. occur, as shown in the figure.
As such, many acquired defects were found in many SA areas.
If the optical disk is scratched or damaged
It is considered that the whole has deteriorated. So, like this
In the case of optical disks, it is better to prohibit later data recording
No. Next, the CD-R / RW drive shown in FIG.
The processing according to claim 3 of the present invention in the
I will tell. FIG. 11 shows the CD-R / RW drive device 1.
Showing a process according to claim 3 of the present invention.
FIG. This processing is performed after the processing shown in FIG.
Do. As shown in FIG. 11, the controller 9
After the processing shown in FIG.
Refer to each replacement management table in order from the top (for example, SA1
Of each SA area (replacement area)
Area: SA) The number of defective areas in each area is obtained. This lack
The number of indented areas is determined by the replacement management table in the designated SA area.
Examine the unusable entry and find the address
It is sufficient to check the number of defective addresses in the SA area.
No. Further, defect address information in each SA area was examined.
After that, the defect address information of each SA area is all
Calculate the total number of defective addresses in all SA areas on the disk
You. At step 32, all SA areas in the optical disk
The ratio of the total number of defective addresses in the
It is determined whether or not the number is exceeded. For this predetermined percentage
In this case, for example, it may be 50% of the entire SA area. And
Accordingly, the total number of defective addresses obtained above and all replacement areas
In all replacement areas based on the total number of all areas in
Whether the ratio of the number of defective areas exceeds 50%
I do. In the judgment of step 32, the defect
When the ratio of the total number of dresses does not exceed the specified ratio
Terminates this processing.
Unused area on optical disk (SA area and DA area)
Is registered as a recording prohibition area, and this processing ends. M
In the case of RW, data recording on the optical disc is prohibited.
To do so, a replacement management table showing the unused area of each SA area
Free entries are registered as Unusable entries
In addition to re-recording, all unused DA area addresses are
To register in the Unusable entry. In the above-described step 32, the optical disk
The total number of defective addresses in all SA areas in the disk is a predetermined number
May be determined. That
The predetermined numerical value may be, for example, 8192. This value
Needs to be changed depending on the number of SA areas. That is,
The total number of defective addresses in all SA areas on the optical disk is predetermined
If the value exceeds the
Areas (SA area and DA area) are registered as recording prohibited areas
I do. In this way, the optical disk can be spread over a wide area.
Scratches or large areas over the recording area of the optical disc
If the optical disc is
Can be prohibited and cannot be played back afterwards.
Can prevent data recording that could
No loss of data reliability during playback after recording
No. Note that, in the above-described embodiment, when there are a plurality of replacement areas,
However, the present invention is applicable to the case where there is only one spare area.
It can be implemented in the same manner as described above. As described above, the information of the present invention is as follows.
According to the information recording / reproducing device, external data recording or re-
Before there is a raw request, grasp the quality of the replacement area in advance,
By performing continuous replacement processing due to defects in the replacement area
Prevent processing performance from deteriorating
it can.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a system configuration including a CD-R / RW drive device and a host computer according to an embodiment of the present invention. FIG. 2 is an explanatory diagram showing a format of a recording area of an optical disc based on MRW. FIG. 3 is an explanatory diagram showing a format of a replacement management table (MTA). FIG. 4 is a diagram showing an example of a format when data reproduced from an optical disc is sent to a host computer. FIG. 5 is a flowchart showing a process according to claim 1 of the present invention in the CD-R / RW drive device 1 shown in FIG. FIG. 6 is a data format diagram showing an example of a usable area and a recording prohibited area in a spare area SA. 7 is a flowchart showing a process according to claim 2 of the present invention in the CD-R / RW drive device 1 shown in FIG. FIG. 8 is a diagram illustrating a replacement management table in which an unused area is entered and a format when the unused area is changed to a recording prohibited area. FIG. 9 is a format diagram showing a position of an SA area in which all unused areas are registered as recording prohibited areas. FIG. 10 is a diagram showing a format example of a recording area of an optical disc in which a number of acquired defects have been found in a spare area. 11 is a CD-R / RW drive device 1 shown in FIG.
FIG. 7 is a flowchart showing a process according to claim 3 of the present invention. [Description of References] 1: CD-R / RW drive device 2: spindle motor 3: rotation control system 4: optical pickup 5: coarse motor 6: coarse motor control system 7: signal processing system 8: light Pickup control system unit 9: Controller 10: Buffer memory 11: Non-volatile memory 12: Host computer 13: Optical disk

Claims (1)

  1. Claims: 1. An information recording / reproducing method in a predetermined recording unit on a recording medium having one or a plurality of replacement areas in an information recording area, and a defective area being recorded or reproduced in the recording or reproduction. An information recording / reproducing apparatus comprising means for substituting information of the defective area for the replacement area when detected, wherein a recording or reproduction command of information on the recording medium is not instructed from the outside, An information recording / reproducing apparatus, comprising: a recording prohibited area registration unit for reproducing an unused area and registering a defective area found by the reproduction as a recording prohibited area when performing a replacement process. 2. When the ratio of defective areas in the spare area exceeds a predetermined ratio in the one or more spare areas, the spare area is registered as a record prohibited area in the recording prohibited area registering means. 2. The information recording / reproducing apparatus according to claim 1, further comprising means for performing. 3. When the ratio of defective areas in the one or more spare areas exceeds a predetermined ratio, the recording prohibited area registering means registers all unused areas of the spare area of the recording medium as recording prohibited areas. 2. The information recording / reproducing apparatus according to claim 1, further comprising means for registering as information.
JP2002047934A 2002-02-25 2002-02-25 Information recording and reproducing device Pending JP2003249030A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002047934A JP2003249030A (en) 2002-02-25 2002-02-25 Information recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002047934A JP2003249030A (en) 2002-02-25 2002-02-25 Information recording and reproducing device

Publications (1)

Publication Number Publication Date
JP2003249030A true JP2003249030A (en) 2003-09-05

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007080459A (en) * 2005-09-16 2007-03-29 Sony Corp Recorder and recording method
JP2008159088A (en) * 2006-12-20 2008-07-10 Toshiba Corp Optical disk drive and its recording method
US8174942B2 (en) 2004-02-05 2012-05-08 Hitachi, Ltd. Data recording method capable of replacing defective data on different location in spare areas

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8174942B2 (en) 2004-02-05 2012-05-08 Hitachi, Ltd. Data recording method capable of replacing defective data on different location in spare areas
JP2007080459A (en) * 2005-09-16 2007-03-29 Sony Corp Recorder and recording method
JP2008159088A (en) * 2006-12-20 2008-07-10 Toshiba Corp Optical disk drive and its recording method

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