JP3466565B2 - Information recording method and apparatus - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information recording method and a recording / reproducing apparatus for recording recording data on an optical disc.

[0002]

2. Description of the Related Art Write-once type optical disks have been developed which can record data only once. In this write-once optical disc, the organic dye applied to the pre-groove in which the wobbling signal and the position information for keeping the linear velocity at the time of recording just before the reflection layer are formed is irradiated with laser light. Information is recorded by making an optical change.

A conventional apparatus for recording data on such a write-once type optical disc has been designed to perform recording according to the format shown in FIG. That is, FIG.
(A) shows a recording format of a write-once optical disc (CD-R), where PCA is an area for checking write power, RI is a lead-in area, DATA is a write data area, and RO is a lead-out area. .

Writing data to a conventional CD-R is shown in FIG.
As shown in (A), the RI data and RO data are added before and after the additional write data for each additional write data, and the CD-R is added.
I am trying to write to. Further, as shown in FIG. 5B, the format of each data to be written in the CD-R is such that a sync signal (SYNC) and a sync signal number (S #) are added for each fixed length of write data. I try to put it in.

[0005]

As described above, in the conventional writing of data to a CD-R, a large amount of lead-in data and lead-out data is added to each additional write data.

Therefore, the lead-in and lead-out areas increase in accordance with the number of times of additional recording on the CD-R, and the recording area for recording necessary data decreases accordingly. Also, when reproducing the data recorded in this way, it is not possible to determine the last lead-out because it is not known how much writing is done, and the last lead-out area is passed. The reading is performed, and the determination is made by knowing that the writing is not performed (not formatted) there.

Therefore, if the formatting is not performed, the synchronization signal used for the spindle servo control cannot be obtained, the synchronization is lost, and the information must be reproduced again by the complicated processing. According to the present invention, the data recording area does not decrease much even if the number of additional recordings increases,
Moreover, it is an object of the present invention to provide an information recording method and a recording / reproducing apparatus that enable the recording end position to be easily determined.

[0008]

Before describing the means for solving the above-mentioned problems, the principle of the present invention will be described with reference to FIG. FIG. 4A shows a CD-ROM used in the present invention.
The recording format of R, FIG. 4B is the write data format. The write data format shown in FIG. 4B uses the same format as described in FIG. 5B.

In FIG. 4A, the write power check area (PCA), the lead-in area (RI), the data (DATA) and the lead-out area (RO) are the same as those described with reference to FIG. 5A. is there. According to the present invention, a management information area (MA) for recording a directory of data to be recorded before writing data, a partition address indicating a recording end position, and the like, and a partition area (PA) indicating a recording end position next to the recording data are provided. Set up. Since the amount of data in MA and PA is much smaller than that in RI and RO, the reduction of the data area due to the addition of MA and PA is very small.

As the data to be written in the PA, a predetermined binary data (P) is written. As shown in FIG. 5 (A),
When performing the second additional recording (Chapter 2 ) on the CD-R on which the first writing (Chapter 1) has been performed, first the MA is read to know the PA position, and the partition data (P) is recorded at the PA position. If (P) is recorded, it is necessary to rewrite data (E) other than (P) and then write MA, DATA and PA shown in Chapter 2. To Therefore, when a plurality of additional recordings are performed, only the last added PA of the chapter is recorded with the partition data (P) indicating the ending position, and the previous PA of the chapter is rewritten with (E). The writing end position can be easily known by changing to data other than (P). In addition, when the additional recording to the CD-R is finished, as shown in FIG.
Write O.

Next, means for solving the problem will be described. The present invention according to claim 1 is an information recording method for recording recording data on an optical disc, wherein a recording format for recording the recording data on the optical disc is a writing for recording the recording data. A data area, a partition area arranged after the write data area and including partition data indicating whether or not the recording end position exists, and arranged in front of the write data area.
A partition containing the address of the partition area.
Management information for recording management information.
If the optical disc is unwritten, the recording data is recorded according to the recording format, and if the optical disc is already recorded, the partition area of the partition area The partition data is read, and it is determined whether or not the read partition data indicates the recording end position. If the partition data indicates the recording end position, it is different from the data indicating the recording end position in the partition area. Data is recorded, and the recording data is additionally recorded according to the recording format after the partition area.

The present invention according to claim 2 is the information recording method according to claim 1, wherein when the partition data does not indicate a recording end position, the next partition is read until the read partition data indicates a recording end position. The operation is characterized in that the partition data of the area is read and the operation of determining whether or not the read partition data indicates the recording end position is repeated.

The present invention according to claim 3 provides the invention according to claim 1 or 2.
In the information recording method described above, when the recording data is additionally recorded according to the recording format , the recording end position is set by terminating the additional recording by leaving a part of the partition area in the recording format in an unwritten state.
The partition containing partition data indicating
It is characterized by forming an area.

The present invention according to claim 4 is based on claims 1 to 3.
The information recording method according to any one of the par
If the partition data does not indicate the recording end position,
The money placed after the partition area
Address area of the partition area
Read the next partition based on the address.
The partition data is read from the master area .

The present invention according to claim 5 is based on claims 1 to 4.
Any information recording method according to one, the optical data of
Check the writing power for the disk recording format.
Write power check area and read-in area
The management information area data
The amount of data is less than the amount of data in the lead-in area
It is characterized by

The present invention according to claim 6 provides the invention according to any one of claims 1 to 5.
In the information recording method described in any one of 1,
When adding the data at the end, read out area
Is formed on the outermost peripheral side of the optical disc,
The amount of data in the option area is
It is characterized by less than the amount of data .

The present invention according to claim 7 is an optical disc.
An information recording device for recording recorded data, comprising:
When recording the recording data on the optical disc,
Format the write data for recording the recording data.
Data area, which is placed after the relevant write data area.
Partition data indicating whether it is the recording end position
Including the partition area, before the write data area
Located in the partition containing the address of the partition area.
Management for recording management information
Whether or not the optical disc is unwritten, consisting of an information area
First determining means for determining whether the optical disk is unwritten
, The recording data is converted to the recording format.
Therefore, the recording means for recording and the optical disc have already been recorded
Partition of the partition area,
Means for reading the session data and the read partition
Whether the recording data indicates the recording end position
The second determination means and the partition data are recorded.
If the location is shown, write it in the partition area.
Record data that is different from the recording end position, and
After the partition area, the recorded data
An additional recording means for additionally recording according to the recording format,
It is characterized by including.

The present invention according to claim 8 provides the invention according to claim 7.
In the information recording device, the second determination means causes the
It is determined that the partition data does not indicate the recording end position.
If it is set, the read partition data will not be recorded.
Until the end position is indicated, the next partition by the reading means is
Operation to read the partition data of the storage area, and
The partition data read by the second determination means.
Operation to determine whether or not the data indicates the recording end position.
Characterized by repeating.

The present invention according to claim 9 provides the invention according to claim 7 or 8.
In the information recording device described above, the additional recording means is
When adding recorded data according to the recording format,
The partition area in the recording format
A part of A will be added as unwritten
Contains partition data indicating the recording end position
The partition area is formed.
It

The present invention according to claim 10 provides the invention according to any one of claims 7 to 7.
9. In the information recording apparatus according to any one of 9,
The output means indicates the recording end position of the partition data.
If not shown, it is placed after the partition area.
From the management area in which the
Area address and read it based on the address.
From the next partition area.
Data is read out. The present invention according to claim 11
Is an information recording device according to any one of claims 7 to 10.
The optical disc recording format is
Write power check error to check the embedded power
And a lead-in area.
The amount of data in the lead information area is
It is characterized by less than the amount of data. Claim 12
The present invention as set forth in any one of claims 7 to 11.
In the information recording device, the record data is additionally recorded at the end.
The read-out area is the
Data of the partition area formed on the outer peripheral side
The amount is less than the amount of data in the lead-out area
It is characterized by The present invention according to claim 13 provides an optical disc.
Is an information recording method for recording recorded data on a disk.
When recording the recording data on the optical disc
A recording format for recording the recording data
Write data area, placed after the write data area
The partition that indicates whether or not it is the recording end position
A partition area containing data, the write data area
It is placed in front of the rear, and the
Money for recording management information including reply
It is composed of the
Read the partition data of
It is possible to determine whether the location data indicates the recording end position.
And the partition data indicates the recording end position.
If it is, the recording end position in the partition area
Data different from the data indicating
The recording data is recorded after the partition area.
It is characterized by additional recording according to the format. Claim
The present invention according to claim 14 is the information recording method according to claim 13.
In the path over tee Deployment data recording end position
If not shown, the read partition data is recorded.
The next partition area pattern is displayed until the recording end position is indicated.
Read the partition data, and read the partition
Whether the recording data indicates the recording end position
The feature is that the operation is repeated. Main claim according to claim 15
Ming is the information recording method according to claim 13 or 14.
The recorded data according to the recording format.
When writing, the party in the recording format
Addition ends with a part of the application area left unwritten
The partition data indicating the recording end position.
The partition area containing the data
Characterize. The present invention according to claim 16 relates to claim 13
In the information recording method described in any one of items 1 to 15,
Partition data does not indicate the recording end position
If the above is placed after the relevant partition area
From the management area to the partition area
The address is read, and the next pattern is read based on the address.
Read partition data from the partition area
Is characterized by. The present invention according to claim 17 relates to claim 13
In the information recording method described in any one of 1 to 16,
The write format of the optical disc recording format
Write power check area and read
It also has an in-area,
The amount of data in A is more than the amount of data in the lead-in area
It is also characterized by a small number. The present invention according to claim 18
Is the information record according to any one of claims 13 to 17.
In the method, when the recorded data is added last
Indicates that the lead-out area is on the outermost peripheral side of the optical disc.
The amount of data in the partition area is
Note that the amount of data is less than that in the lead-out area.
To collect. The present invention according to claim 19 is an optical disc.
An information recording device for recording recorded data, comprising:
When recording the recording data on the optical disc,
Format the write data for recording the recording data.
Data area, which is placed after the relevant write data area.
Partition data indicating whether it is the recording end position
Including the partition area, before the write data area
Located in the partition containing the address of the partition area.
Manet for recording the non-management information Jimento
It consists of an information area and the partition area
Reading means for reading the partition data and the read part
Check whether the location data indicates the recording end position.
The determination means and the partition data are recorded
If it indicates the end position, the partition area
Record data that is different from the data that indicates the recording end position
Also, after the partition area, the recording
An adder for adding data according to the recording format
And a step. The present invention according to claim 20 relates to claim 1
In the information recording apparatus described in 9,
Partition data does not indicate the recording end position
If it is determined that the read partition data is
The next part by the reading means is displayed until the recording end position is indicated.
To read the partition data of the partition area,
And the partition data read by the determination means
Operation to determine whether or not the data indicates the recording end position.
Characterized by repeating. The present invention according to claim 21 is
The information recording apparatus according to claim 19 or 20, wherein:
The additional recording means converts the recording data into the recording format.
Therefore, when additionally writing, the
Add part of the partition area as unwritten
By ending the recording, the party indicating the recording end position
To form the partition area containing application data
It is characterized by The present invention according to claim 22 is a claim
The information recording apparatus according to any one of Items 19 to 21.
The partition data is written in the reading means.
If the recording end position is not indicated, the partition
Front from the management area located after the rear
Read the address of the partition area and
The next partition area based on
It is characterized by reading the application data. Claim 23
The present invention described in any one of claims 19 to 22.
In the information recording apparatus of
Matt is the write power for checking the write power.
In addition to the check area and lead-in area,
The amount of data in the management information area is
It is characterized in that it is smaller than the amount of data in the in-area.
The present invention according to claim 24 is in accordance with any one of claims 19 to 23.
Re or the information recording recording apparatus according to one, the recording data
Is added at the end, the lead-out area
The partition is formed on the outermost peripheral side of the optical disc.
The amount of data in the area is the amount of data in the lead-out area.
Characterized by less than quantity.

[0021]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram of an embodiment of the present invention. In FIG. 1, 1 is a write-once optical disc (CD-R), 2 is a motor, 3 is a pickup, 4 is a servo circuit, 5 is a laser, 6 is an encoder, 7 is a power control circuit for the laser 5,
Reference numeral 8 is a regenerative amplifier, 9 is a decoder, 10 is a guide signal decoder, 11 is a management information reading unit, 12 is a management information writing unit, 13 is a partition data reading unit, 14 is a determination unit, and 15 is partition data (re).
A writing unit, 16 is a control unit, 17 is an input unit, 18 to 23 are interfaces (I / O), and 24 is a processor (CPU) that performs processing.

Next, the recording operation of the present invention will be described with reference to FIG. In process S1, the servo circuit 4 performs a servo process for controlling the rotation of the motor 2 and the tracking and focus of the pickup 3. In process S2, the control unit 16 instructs the power control circuit 7 to execute the operation shown in FIG.
The output of the laser 5 is increased in the PCA area of the CD-R shown in (A), and the optimum power value for writing is checked.

In the process S3, if the CD-R 1 is an unwritten optical disc, the process proceeds to a process S4, and if it is a written disc, the process proceeds to a process S9. In step S4, the management information writing unit 12 creates management information and
It is output via O18, encoded by the encoder 6 to modulate the output of the laser 5, and the CD-R from the pickup 3.
1 is irradiated and management information is written.

In process S5, the control unit 7 outputs the recording data input from the I / O 22 via the I / O 18,
Write data to CD-R1. When the writing of the data is completed, in step S6, the partition data (re) writing unit 15 writes the partition data (P).

In step S7, the CD-R1 is input from the input unit 17.
If the input for terminating the writing has not been input, the processing is ended, and if the input has been input, the processing proceeds to step S8 and the processing shown in FIG.
As shown in (A), the lead-out data and the MO are written, and the process ends. Further, if the determination in process S3 is NO, the process proceeds to process S9, and in process S9, the management information reading unit 11 reads the management information from the CD-R 1 via the I / O 20.

In step S10, the partition data reading unit 13 reads the partition data from the address corresponding to the address where the partition data is recorded in the management information read in step S9. In process S11, the determination unit 14 determines whether the data read in process S10 is regular partition data (P). If the determination is YES, the process proceeds to process S12, and if the determination is NO. The process proceeds to step S9, the management information is read, and steps S9 to S11 are repeated.

In step S12, if there is no write area on the CD-R 1, the process proceeds to step S8, and if there is a write area, the process proceeds to step S13. In the process S13, the partition data (re) writing unit 15 rewrites the data (E) different from the regular partition data (P) into the address of the partition data read in the process S10.
Go to 4.

That is, PA of Chapter 1 of FIG. 4 (A)
If (P) is detected at, then (E) is rewritten to the PA of Chapter 1 so that the recording is not (P), and only the PA of the last recorded Chapter (P) is recorded. It In the embodiment, the management information is written in the processing S4 by writing only the management information for the data to be written. However, the management recording for the data recorded before being read in the processing S9 is performed. Information may also be added and writing may be performed.

Further, in the embodiment, when the partition data (P) is detected, (E) is written to write the additional write data so that (P) is written only in the PA of the last Chapter. However, the data is not written in the PA for the additional write data, and when there is an unwritten PA in the additional write, it is determined that this position is the previous write end position, and (P) is written, Then, additional write data may be written.

That is, in the additionally written chapter PA, the SYNC and S # shown in FIG. 4B are written, but the write data is not written. Even with this, S
Since the YNC is written, there is no problem of loss of synchronization. Next, the operation during reproduction will be described with reference to FIG.

When a reproduction command is input from the input section 17 in the process S21, the process moves to the process S22 and the focus, spindle and tracking servo system processes are performed. In step S23, the management information reading unit 11
Reads the management information from the MA of the first Chapter.

In step S24, the partition data reading section 13 reads data from the address of the partition data in the management information read in step S23. In process S25, the determination unit 14 determines whether or not the data read in process S24 is regular partition data (P). If the determination is NO, the process moves to process S23 to read the management information of the next Chapter. Processing S
23 to S25 are repeated.

If the determination in step S25 is YES, the process moves to step S26, the read management information is referred to, the head is skipped to the position corresponding to the command input in step S21, and the process proceeds to step S27. Read the recorded data. When the reading of the data is completed and the next command is input, the process proceeds to step S26, and when not input, the process ends.

[0034]

As described above, according to the present invention, even if the number of additional recordings increases, the data recording area does not decrease so much and the recording end position can be easily found. Also,
Record data directory or record before additional data
A managed address such as a partition address that indicates the end position
Information, and a partition indicating the recording end position later.
Additional data for recording
Partition of the last data written on the optical disc
Data becomes data other than partition data.
As I tried to rewrite it and added it, I added it.
Even if the number increases, the data recording area will not decrease much, and
It is possible to easily find the position of the postscript data. Change
In addition, the management
Previously written data in addition to
Please add management information for
Therefore, the management information of the final postscript data is
Includes all management information for recorded data
By referring to this management information,
You can easily know the recording device. Furthermore, the information
At birth, if partition data is recorded,
It is judged that the position is the recording end position and the input command
I tried to shift to the position indicated by and start playback.
The head is not formatted.
No sync loss and sync loss, immediate playback
Can start.

[Brief description of drawings]

FIG. 1 is a configuration diagram of an embodiment of the present invention.

FIG. 2 is a flowchart of an operation at the time of recording in the embodiment.

FIG. 3 is an operation flowchart during reproduction according to the embodiment.

FIG. 4 is a diagram showing a recording format on a write-once optical disc of the present invention.

FIG. 5 is a diagram showing a recording format on a conventional write-once optical disc.

[Explanation of symbols]

1 Write-once optical disc (CD-R) 2 motor 3 pickups 4 Servo circuit 5 laser 6 encoder 7 Power control circuit 8 Regenerative amplifier 9 decoder 10 Guide signal decoder 11 Management information reading section 12 Management information writing section 13 Partition data reading section 14 Judgment section 15 Partition data (re) writing section 16 Control unit 17 Input section 18-23 interface (I / O) 24 processors (CPU)

─────────────────────────────────────────────────── ─── Continued Front Page (58) Fields surveyed (Int.Cl. ⁷ , DB name) G11B ⁷ /00-7/013 G11B 7/30 G11B 20/10-20/16 G11B 27/00-27 / 08

Claims (24)

(57) [Claims] 1. An information recording method for recording recording data on an optical disc, comprising: a recording format for recording the recording data on the optical disc; a write data area for recording the recording data; A partition area , which is arranged after the write data area and includes partition data indicating whether or not the recording end position, the write data area .
Is placed in front of the
Managed to record management information including
A write information area , it is determined whether the optical disc is unwritten, if the optical disc is not written, the recording data is recorded according to the recording format, and if the optical disc is already recorded, the partition is recorded. If the read partitions data area, the partition data issued said read determines whether shows recording end position, the partition data indicates recording end position, indicating the recording end position in the partition area
An information recording method, characterized in that data different from data is recorded, and that the recording data is additionally recorded according to the recording format after the partition area. 2. When the partition data does not indicate the recording end position, the partition data of the next partition area is read until the read partition data indicates the recording end position, and the read partition data indicates the recording end position. 2. The information recording method according to claim 1, wherein the operation of determining whether or not it is shown is repeated. 3. When the recording data is additionally recorded according to the recording format, a part of the partition area in the recording format is set to an unwritten state.
By ending the additional recording, the pattern indicating the recording end position is displayed.
The partition area containing the partition data
The information recording method according to claim 1 or 2, characterized in that. 4. The partition data is recorded at the end of recording.
Location is not shown, after the partition area
From the management area located in
Read the address of the application area and
The partition partition from the next partition area.
The data is read out from any one of claims 1 to 3.
One information recording method according to any. 5. The recording format of the optical disk is
Check the write power to check the write power.
A rear and lead-in areas are further provided, and the amount of data in the management information area is
Characterized by being less than the amount of data in the doin area
The information recording method according to any one of claims 1 to 4 . 6. When additionally recording the recorded data at the end
Indicates that the lead-out area is on the outermost peripheral side of the optical disc.
And the amount of data in the partition area is
Contracts characterized by less than the amount of data in the out area
The information recording method according to any one of claims 1 to 5. 7. For recording recording data on an optical disk
An information recording device for recording the recording data onto the optical disc.
Write format to record the recorded data
Placed behind the data area and the write data area
The partition data indicating whether or not it is the recording end position
Partition area including data, the write data area
Is placed in front of the
Managed to record management information including
The first judgment means for judging whether or not the optical disc is unwritten , which is constituted by the comment information area.
And the recorded data if the optical disc is unwritten.
Recording means for recording data according to the recording format, and if the optical disc has already been recorded, the partition
Read-out method for reading partition data of the storage area
And the read partition data indicates the recording end position.
Second determining means for determining whether or not the partition data indicates the recording end position.
In this case, indicate the recording end position in the relevant partition area
Record data that is different from the data, and
The recording area, the recording data is recorded.
An information recording device, comprising: an additional recording device for additionally recording according to a mat . 8. The partition by the second determining means.
It is determined that the recording data does not indicate the recording end position.
If the read partition data indicates the recording end position,
Until the next reading, the next partition error
The operation of reading the partition data of
The read partition data is recorded by the judging means.
Repeat the operation to determine whether or not the end position is indicated.
The information recording apparatus according to claim 7, wherein: 9. The additional recording means stores the recorded data in the recorded data.
When adding data according to the recording format,
Unwritten part of the partition area on the mat
Recording is ended by ending additional recording as a complicated state
The partition containing partition data indicating the location
9. An area according to claim 7 or 8 is formed.
Information recording device described. 10. The reading means is the partition.
If the data does not indicate the recording end position, the part
The management area located after the
Read the address of the partition area from the rear
The next partition area based on the address.
Contract data read from the partition data
The information recording apparatus according to any one of claims 7 to 9. 11. Recording format of the optical disc
Is a write power check to check the write power.
Further equipped with querier and lead-in area, The amount of data in the management information area is
Characterized by being less than the amount of data in the doin area
The information recording device according to claim 7. 12. The method according to claim 12, When adding the recorded data at the end
Read out to Area is the outermost side of the optical disc
Formed in The amount of data in the partition area is
Contracts characterized by less than the amount of data in the out area
The information recording device according to any one of claims 7 to 11. 13. Record data on an optical disc
Information recording method for Recording when recording the recording data on the optical disc
Write format to record the recorded data
Placed behind the data area and the write data area
The partition data indicating whether or not it is the recording end position
Partition area including data, the write data area
Is placed in front of the
Managed to record management information including
It is composed of the Read the partition data in the partition area
broth, The read partition data indicates the recording end position
Is determined, The partition data indicates the recording end position
In this case, indicate the recording end position in the relevant partition area
Record data that is different from the data, and
The recording area, the recording data is recorded.
Information recording method characterized by additional writing according to matte
Law. 14. The partition data has been recorded
If the position is not shown, the read partition data
The next partition area until the
Read the partition data of
It is possible to determine whether the location data indicates the recording end position.
14. The operation according to claim 13, wherein the setting operation is repeated.
Information recording method. 15. The recording data is recorded in the recording format.
When adding according to the
Leave part of the partition area unwritten
When the additional recording is finished by
Partition area containing partition data
Information according to claim 13 or 14, characterized in that
Recording method. 16. The partition data has been recorded
If the position is not shown, the partition area
From the management area that was placed later,
Read the address of the partition area and set the address
Partition from the next partition area based on
The data is read out, according to claim 13 to 15.
The information recording method described in any one. 17. Recording format of the optical disc
Is a write power check to check the write power.
Further equipped with querier and lead-in area, The manet
The amount of data in the maintenance information area is
The amount of data is smaller than that of the rear data.
The information recording method according to any one of 3 to 16. 18. When adding the recorded data at the end
Is the lead-out area on the outermost circumference side of the optical disc.
Formed in The amount of data in the partition area is
Contracts characterized by less than the amount of data in the out area
18. The information recording method according to any one of claims 13 to 17. 19. Record data on an optical disc
Information recording device for Recording when recording the recording data on the optical disc
Write format to record the recorded data
Placed behind the data area and the write data area
The partition data indicating whether or not it is the recording end position
Partition area including data, the write data area
Is placed in front of the
Managed to record management information including
It is composed of the Read the partition data in the partition area
Read-out means to issue, The read partition data indicates the recording end position
Determination means for determining whether or not The partition data indicates the recording end position
In this case, indicate the recording end position in the relevant partition area
Record data that is different from the data, and
The recording area, the recording data is recorded.
According to mat An appending means to append, An information recording apparatus comprising: 20. The partition is determined by the determination means.
If it is determined that the video data does not indicate the recording end position,
If the read partition data indicates the recording end position,
Until the next partition area by the reading means
Of reading the partition data of the
The read partition data by the stage is the end of recording
Is repeated.
The information recording device according to claim 19, which is used as a characteristic. 21. The additional recording means writes the recorded data in front of the recorded data.
When recording additionally according to the recording format,
Part of the partition area on the mat
By ending additional recording as the writing state,
The party including partition data indicating the end position
20. An additional area is formed, further comprising:
Is an information recording device described in 20. 22. The reading means is the partition
If the data does not indicate the recording end position, the part
The management area located after the
Read the address of the partition area from the rear
The next partition area based on the address.
Contract data read from the partition data
The information recording apparatus according to any one of claims 19 to 21. 23. Recording format of the optical disc
Is a write power check to check the write power.
Further equipped with querier and lead-in area, The amount of data in the management information area is
Characterized by being less than the amount of data in the doin area
The information recording device according to any one of claims 19 to 22.
Place 24. When adding the recorded data at the end
Is the lead-out area on the outermost circumference side of the optical disc.
Formed in The amount of data in the partition area is
Contracts characterized by less than the amount of data in the out area
The information recording apparatus according to any one of claims 19 to 23.