JP2003281828A - Information recording and reproducing device and information recording and reproducing system, and program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To record data by physically evading a segment made into a defective segment in reusing an information recording medium used thus far by a format or writing system having a defect management function by a format or writing system not having the defect management function. <P>SOLUTION: When a CD-MRW drive 2 receives a request for the defect management information by receiving a get defect table information command from a host computer 1, the drive reads the defect management information of a CD-MRW disk loaded therein out of the CD-MRW disk (or a RAM) and transfers the information to the host computer 1. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a CD-R / RW.
The present invention relates to an information recording / reproducing device such as a drive and a DVD drive, an information recording / reproducing system, a program, and a recording medium.

[0002]

2. Description of the Related Art Conventionally, various techniques have been devised for defect management of optical disks. Many of these technologies realize a defect management function by an optical disk device (optical disk drive) which is an information recording / reproducing apparatus and an optical disk which is an information recording medium, and a host device (host computer) connecting the optical disk device. Read / write without worrying about defect management of optical discs.
Access such as lights is possible. On the other hand, for example, CD-
Orange Book (Orange)
CD-RW drives and CDs without deviating from the Orange Book standard for discs for which the disk standard (hereinafter referred to as "Orange Book standard") specified by
-It was difficult to perform the defect management function only with the RW disc.

Therefore, a universal disc format (UD) is used.
F (version 1.5 or later)), a standard for defect management has been established on the file system standard controlled by the host computer.
In addition, CD-RW writing software conforming to the standard is supplied from some software vendors. However, in recent years, Mount Rainier (Mt.
er) standard has been established and defines a defect management method realized by a CD-RW drive and a CD-RW disc within a range not deviating from the above-mentioned Orange Book standard.
A standard called "MRW (Mt. Rainier)" (hereinafter referred to as "CD-MRW standard") has been proposed.

FIG. 7 is an explanatory diagram showing the format of a CD-RW disc defined by the CD-MRW standard. According to the CD-MRW standard, the recording area of a CD-RW disc is a lead-in area.
ea) 40, and a program area (Program Area) 41 for recording user data such as music data, files on the file system, directory data, and the like,
Lead-out area 42
Consisting of a conventional CD-DA disc and CD-ROM
The area is the same as the area commonly defined in the CD disc standard such as disc, CD-R disc, and CD-RW disc.

Further, each area provided inside the lead-in area 40, the program area 41, and the lead-out area 42 is also defined. In the lead-in area 40, an MTA area 43 which is a storage area of defect management information is recorded. In the program area 41, the pregap (pr) which is an area recorded according to the above Orange Book standard.
e-gap) area 44, a GAA area 45 that is an area used to maintain compatibility with a CD-RW drive that does not comply with the CD-MRW standard, and SA1 to SAn.
(N: is a positive integer) each replacement area 46 and DA1 to DA
n (n: is a positive integer) user data area 47, and M
The TA area 43 and the STA area 48 which is an area for storing the same defect management information are recorded. Each user data area and each spare area are paired.

For example, the above-mentioned CD-MR is used for the host device.
CD-RW drive compatible with W standard (hereinafter referred to as "CD-M
"RW drive") to connect to CD from the host device
When reading / writing data from / to a CD-RW disc (hereinafter referred to as “CD-MRW disc”) having a format based on the CD-MRW standard shown in FIG. 7 by the MRW drive, read / write of the CD-MRW disc The logical block number for designating the write position is only for each user data area (DA1 to DAn) 47, or the GAA area 45 and each user data area 47.
Since it is allocated only to the host device, the replacement areas (SA to SAn) 46 and the STA area 48 are accessed from the host device even though they are in the program area 41 which is originally an area in which the host device can read / write. Can not do it.

This is because the purpose of the Mount Rainier standardization was originally to realize the defect management by the CD-RW drive and the CD-RW disc, and by doing so, the host device can perform the replacement area and the defect. The linear address space can be accessed without being aware of the existence of the STA area, which is the storage area of the management information.

Since the CD-RW disc can completely erase the data in the recording area, the conventional CD
-In the MRW drive, the CD-MR as shown in FIG.
It can be used in the W format as well as in the format of the writing method without the defect management function according to the conventional Orange Book standard, for example, Track At Once (TrackA).
t Once) writing system format, it was possible to reuse the CD-RW disc.

[0009]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention
In the MRW drive, for example, when a CD-RW disc in the CD-MRW format is used, the CD-MRW
While it is being used in the format, even if there is a defect such as the fact that the written data cannot be read normally due to rewriting exceeding the limit of the number of rewriting of the CD-RW disc, the CD-RW disc The defect management process of the MRW disc allows the disc to be properly used.

However, when the data of the CD-RW disc is once erased and the data is newly written by the track-at-once writing method, no consideration is given to a defective portion generated during use in the CD-MRW format. However, since the data is written without doing so, the defective portion continues to exist as a defective portion as a result, and there is a problem that the data cannot be read correctly after recording.

The present invention has been made in order to solve the above-mentioned problems, and an information recording medium used in a format or writing system having a defect management function is replaced by a format or writing system having no defect management function. When it is reused in, the purpose is to enable recording by avoiding the physically defective portion.

[0012]

In order to achieve the above object, the present invention can be used in an information recording medium that can be used in a format or writing method that does not have a defect management function and in a format or writing method that has a defect management function. Is an information recording / reproducing apparatus capable of recording / reproducing without a defect management function and recording / reproducing with a defect management function, and having a defect management function in response to an external request. There is provided an information recording / reproducing apparatus having means for transferring defect management information of the information recording medium to a request destination.

Recording without a defect management function is performed on an information recording medium that does not have a defect management function and that can be used in a format or a writing method and an information recording medium that has a defect management function that can be used in a format or a writing method. Alternatively, a means for performing recording or reproduction with reproduction and a defect management function, a means for judging whether or not the information recording medium in use is recorded in a format or a writing system having a defect management function, and defect management by that means When it is determined that the information recording medium is recorded in a format or a writing method having a function, a means for issuing an interface command requesting the transfer of defect management information, and an interface command issued by the means Write in the format or writing method that has the above defect management function. Means for acquiring the defect management information of the information recording medium, and the position of the defective portion of the information recording medium recorded in the format or the writing method having the defect management function based on the defect management information acquired by the means. Constructing means for obtaining and holding information, and write data that avoids the defective portion of the information recording medium recorded in the format or the writing method having the above defect management function based on the position information of the defective portion held by the means And a means for erasing the data of the information recording medium recorded by the format or writing method having the defect management function, and a format or writing method having the defect management function after erasing the data by the means. Write data constructed above for the recorded information recording medium Also it provides an information recording and reproducing system comprising means for writing the format or writing method without defect management.

Further, the computer is provided with a defect management function for an information recording medium which does not have a defect management function and which can be used in a format or a writing method and an information recording medium which has a defect management function and can be used in a format or a writing method. Recording / reproduction without recording and recording / reproduction with a defect management function, and a procedure for determining whether or not the information recording medium in use is recorded in a format or a writing method having a defect management function, and the procedure. When it is determined that the information recording medium is recorded in a format or a writing method having a defect management function by the procedure, a procedure for issuing an interface command requesting transfer of the defect management information, and an interface issued by the procedure. Depending on the command, the format or the defect management function A procedure for acquiring defect management information of an information recording medium recorded by a writing method and an information recording medium recorded by a format or a writing method having the defect management function based on the defect management information acquired by the procedure. A procedure for obtaining and holding position information of a defective portion and a defective portion of an information recording medium recorded in a format or a writing method having the above defect management function based on the position information of the defective portion held by the procedure are avoided. A procedure for constructing write data, a procedure for erasing data of an information recording medium recorded in a format or a writing method having the above defect management function,
A procedure of erasing data by the procedure and then writing the constructed write data in the format or writing method having no defect management function to the information recording medium recorded in the format or writing method having the defect management function. We also provide a program to execute.

Furthermore, the computer has a defect management function for an information recording medium which does not have a defect management function and which can be used in a format or a writing method, and an information recording medium which has a defect management function and can be used in a format or a writing method. Recording / reproduction without recording and recording / reproducing with a defect management function, and a procedure for determining whether or not the information recording medium in use is recorded in a format or writing method having a defect management function, and When it is determined by the procedure that the information recording medium is recorded in the format or the writing method having the defect management function, the procedure for issuing the interface command requesting the transfer of the defect management information and the interface issued by the procedure. A format having the above defect management function according to the face command. Or, a procedure for acquiring defect management information of an information recording medium recorded by a writing method, and an information recording medium recorded by a format or a writing method having the defect management function based on the defect management information acquired by the procedure. And a procedure for obtaining and holding the position information of the defective portion and avoiding the defective portion of the information recording medium recorded in the format or the writing method having the above-mentioned defect management function based on the position information of the defective portion held by the procedure. And a procedure for erasing the data of the information recording medium recorded in the format or the writing method having the above-mentioned defect management function, and a defect management function after erasing the data by the procedure. The above is applied to the information recording medium recorded in the format or the writing method. Computer readable recording medium recording a program for executing the procedure for writing the format or writing method no defect management functions built with the write data is also provided.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a block diagram showing the configuration of a CD-RW disc recording / reproducing system according to an embodiment of the present invention. This CD-RW disc recording / reproducing system is a host computer (host device).
1 and the CD-MRW drive 2 are connected via a predetermined interface. The host computer 1 is a personal computer, a workstation or the like, and includes a keyboard 3, a mouse 4, a display 5, a display control device 6, a write data storage device 7, a CD image storage device 8, a program storage unit 9, a RAM 10 and a CPU.
11 and each part and CD-MRW drive 2
Are communicatively connected via a bus 12.

The keyboard 3 and the mouse 4 are input devices with which the user inputs various operation information relating to recording or reproducing of data on the optical disk. Display 5
Is a display device such as a CRT or LCD for displaying various information related to recording or reproducing of data on the optical disk to the user. The display control device 6 controls the display of the display 5. The CD image storage device 8 and the write data storage device 7 are memories such as a hard disk drive (HDD) for storing data to be written on the optical disk and data converted to a format such as ISO 9660 file system when writing the write data on the optical disk. It is a device. Although each device is described as a different device in the figure, one HDD is used.
It is also possible to allocate the storage areas as both devices to the recording area of.

The program storage unit 9 is a memory such as a ROM or an EEPROM that stores programs for realizing various controls of the CD-RW disc recording / reproducing system. The RAM 10 is a storage unit used as a work area used when the CPU 11 executes the program in the program storage unit 9 and an area for temporarily holding various data. The CPU 11 is a central processing unit that controls the entire CD-RW disc recording / reproducing system. Bus 1
Reference numeral 2 is a communication line for exchanging various kinds of data between the above-mentioned units and the CD-MRW drive 2.

On the other hand, the CD-MRW drive 2 has a built-in microcomputer including a CPU, a ROM, a RAM and the like like the host computer 1, and records and records data on an information recording medium such as a CD-RW disc and a CD-MRW disc. The information recording medium is provided with a function unit for performing reproduction (a detailed structure is not shown because it is a known technique), and recording or recording without a defect management function is performed on an information recording medium usable in a format or a writing method having a defect management function. Recording or playback with playback and defect management functions.

Next, the function and processing when the information recording / reproducing apparatus according to claim 1 of the present invention is applied to the CD-MRW drive 2 shown in FIG. 1 will be described. in this case,
The CD-MRW drive 2 has a defect management function for an information recording medium that does not have a defect management function and that can be used in a format or writing method, and an information recording medium that has a defect management function and that can be used in a format or writing method. An information recording / reproducing device capable of recording / reproducing and recording / reproducing with a defect management function, wherein the CPU is
By executing a program stored in advance in the ROM, the defect management information of the information recording medium of the format having the defect management function is transferred to the request destination in response to a request from the outside, that is, a request from the host computer 1. Perform a function.

FIG. 2 shows a CD-ROM from the host computer 1.
It is explanatory drawing which shows the format of CDB transmitted to the MRW drive 2. The CD-MRW drive 2 is mounted on a CD-MRW disc which is an information recording medium usable in a format or a writing method having a defect management function.
“Get defect table information (GET DEFECT) requesting the defect management information shown in FIG.
TABLE INFORMATION) "command 2
When the CDB including 0 is received from the host computer 1, the defect management information of the STA area recorded on the CD-MRW disc is read and transferred to the host computer 1. Further, when the defect management information of the CD-MRW disc is held in the RAM, the "get defect table information" command 20
When the defect information is received, the defect management information is transferred from the RAM to the host computer 1.

3 and 4 are diagrams showing the data format of the defect management information. FIG. 3 shows "Defect Table Header (Defect Table Header).
r) ”, and is a“ Defect Table Descriptor (Defect Table) shown in FIG.
Descriptor) "data length is stored. FIG. 4 shows the format of the “defect table descriptor”, in which the information of one defective block is represented by 8 bytes of data, and the defects occurring in the information recording medium usable in the format or the writing method having the defect management function. The position information of the data of all blocks is stored. That is, the data {(the number of defective blocks × 8) bytes of data} shown in FIGS. 3 and 4 is transferred from the CD-MRW drive 2 to the host computer 1.

"Defect Table Descriptor"
Contains information on the replacement source block number (Original Locatio).
n), replacement block number (Mapped Locat)
Ion) is stored in 4 bytes. The replacement source block number and the replacement destination block number are different from the logical block numbers described in the related art. As described in the prior art, since the logical block number is not assigned to the replacement area (SA1 to SAn), which is the replacement area, the replacement block number cannot be represented. Therefore, the replacement block number and the replacement block number of the "defect table descriptor" are the mount rainier (M
t. Rainier) "PBN" specified in the standard
Is represented by a physical block number. In the physical block number, the head of the GAA area shown in FIG. 7 is set to "0", each spare area (SA1 to SAn), each user data area (D
A1 to DAn), and a number is assigned to each block existing in the STA area.

In this way, the CD-MRW drive 2
Can transfer defect management information in a format having a defect management function to the host computer 1,
When reusing a CD-RW disc, the host computer 1 knows in advance a portion where correct reading / writing cannot be performed due to an excessive number of rewritings, and avoids that portion and can reuse data recording and reproduction.

Next, the function and processing when the information recording / reproducing system according to claim 2 of the present invention is applied to the CD-RW disc recording / reproducing system shown in FIG. 1 will be described. In this case, the program according to claim 3 of the present invention is stored in the program storage unit 9 in advance, and the CPU 11 executes the program to claim 2 of the present invention.
Realize each function related to. Further, like the computer-readable recording medium according to claim 4 of the present invention, the program is stored in an information recording medium such as a floppy disk or a CD, and the program is stored in the program storage unit 9 via the information recording medium. May be installed and stored.

That is, the information recording medium which does not have a defect management function and which can be used in the format or writing method and the information recording medium which has a defect management function and which can be used in the format or writing method respectively do not have a defect management function. Alternatively, a means for performing recording or reproduction with reproduction and a defect management function, a means for judging whether or not the information recording medium in use is recorded in a format or a writing system having a defect management function, and defect management by that means When it is determined that the information recording medium is recorded in a format or a writing method having a function, a means for issuing an interface command requesting the transfer of defect management information, and an interface command issued by the means Format or writing method having the above defect management function A means for acquiring the defect management information of the recorded information recording medium, and a defective portion of the information recording medium recorded in the format or the writing method having the defect management function based on the defect management information acquired by the means. Means for obtaining and holding position information, and write data for avoiding the defective portion of the information recording medium recorded in the format or the writing method having the above defect management function based on the position information of the defective portion held by the means. Means for constructing, means for erasing data on the information recording medium recorded in the format or writing method having the defect management function, and format or writing method having the defect management function after erasing the data by the means The writing data constructed above is recorded on the information recording medium recorded in Serve means for writing data in a format or writing method without defect management.

First, the data writing process of this CD-RW disc recording / reproducing system will be described. The program storage unit 9 stores a software program (generally referred to as a mastering software program) that comprehensively controls writing of data in the ISO9660 file system, and the CPU 11 executes the mastering software program. , The CD-MRW drive 2 is caused to write normal data.

First, when the data to be written in the CD-RW disc is selected from the data stored in the write data storage device 7 by the keyboard 3 or the mouse 4, the selected data is formatted in the ISO9660 file system. Then, it is stored as a CD image in the CD image storage device 8, the CD image is transmitted to the CD-MRW drive 2, and the CD-MRW drive 2 writes the received data to the CD-RW disc. In the writing, the CD-RW disc that can be used in the format or the writing method that does not have the defect management function and the CD-MRW disc that can be used in the format or the writing method that has the defect management function do not have the defect management function, respectively. Either the record or the record with the defect management function can be selected. Also, a CD-RW disc that can be used in a format or writing method that does not have the defect management function and a CD-MRW that can be used in a format or writing method that has a defect management function.
Reproduction without a defect management function and reproduction with a defect management function can be performed on the disc.

Next, the data writing process according to the present invention in this CD-RW disc recording / reproducing system will be described. FIG. 5 is a flow chart showing a data writing process according to claim 2 of the present invention in the CD-RW disc recording / reproducing system shown in FIG. Here, on the CD-MRW format, MS-
For the CD-RW disc used in the FAT file system of DOS / Windows (registered trademark), after once erasing all the data of the CD-RW disc,
Track At Once
The operation of writing the data constructed by the ISO9660 file system by the writing method will be described.

This process proceeds to step 2 when the data to be written in the CD-RW disc is selected from the data stored in the write data storage device 7 in step (indicated by "S" in the figure) 1. Then, it is determined whether or not the disc inserted in the CD-MRW drive as the disc to be written is the CD-RW disc used in the CD-MRW format. As a method of checking, for example, MCC-3 which specifies a command for SCSI standard CD / DVD device.
It is possible to send a read disk information (READ DISC INFORMATION) command stipulated in 1. from the host computer 1 to the CD-MRW drive, and check based on the information returned from the CD-MRW drive.

If the disc is not the CD-RW disc used in the CD-MRW format as determined in step 2,
Proceeding to step 9, a file of normal CD image data is created in the CD image storage device 8, and step 7
Go to and instruct the CD-MRW drive to temporarily move the CD-R
Erase the data on the W disc, and then use the CD in step 8
Send the image data file to the CD-MRW drive, and use the CD-MRW drive to erase the data.
The CD image data file is written to the D-RW disc, and this process ends. On the other hand, if the disc is the CD-RW disc used in the CD-MRW format in the determination in step 2, that is, the CD-MRW disc, the process proceeds to step 3 and the host computer indicates the CD-MRW drive as shown in FIG. Issue defect table information command to obtain defect management information from the CD-MRW drive.

Next, in step 4, the defect management information acquired from the CD-MRW drive is analyzed, and the CD-MRW drive is analyzed.
CD in CD-MRW format installed in the drive
-Make a check by checking whether one or more defective blocks have already occurred in the recording area of the MRW disc. That is, it is checked whether or not there is any registered in the defect table descriptor shown in FIG.
If no defect table descriptor is registered, it is determined that no defective block has occurred, and the process proceeds to step 9 to create a normal CD image data file in the CD image storage device 8.
Proceed to step 7 to instruct the CD-MRW drive to once erase the data on the CD-RW disc, and then step 8
Then, the CD image data file is transmitted to the CD-MRW drive, and the CD image data file is written to the CD-RW disc after the data is erased by the CD-MRW drive, and this process ends.

On the other hand, if at least one defect table descriptor is registered in the judgment in step 4, it is judged that a defective block has occurred, and the process advances to step 5 to find the position information of the defective portion from the defect management information. RAM by reading the position (address) where a certain defective block exists
Hold in. Proceeding to step 6, the defective block is filled with dummy data based on the above address, the write data is formatted by ISO9660, a CD image data file is created on the CD image storage device, and the process advances to step 7 to CD-MRW. The drive is instructed to erase the data on the CD-RW disc, and in step 8, the CD image data file is copied to the CD-
The data is transmitted to the MRW drive, and the CD-MRW drive writes the file of the above-mentioned CD image data to the CD-RW disc after the data is erased, and this processing ends.

For example, without considering the defective portion on the CD-RW disc, the CD image data is created by formatting with the normal ISO9660, and the file A30 is created.
6 is recorded in the area including the defective portion existing in the nth sector on the CD-RW disc, the data 31 recorded in the area of the nth sector of the file A is recorded as shown in (a) of FIG. It may not be possible to play with. However, when the defective portion on the CD-RW disc is considered and invalid data is applied to the defective portion by the above-described processing according to the present invention, as shown in FIG. -1 (32) and file A-2 (34), and the dummy data 33 is embedded in the portion corresponding to the area of the nth sector on the CD-RW disc between them to format the CD-RW. It is not necessary to record valid data in the area of the nth sector on the disc.

Thus, in this CD-RW disc recording / reproducing system, the host computer 1 is
Since it is possible to obtain defect management information from the MRW drive 2, construct write data that avoids defective parts by using the defect management information, and write it on a CD-RW disc, a highly reliable CD-RW disc. Can be reused.

[0036]

As described above, according to the information recording / reproducing apparatus, the information recording / reproducing system, the program, and the recording medium of the present invention, the information recording medium used in the format or the writing system having the defect management function. When the data is reused in a format or a writing method that does not have a defect management function, it is possible to record the data while avoiding the physically defective portion.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a CD-RW disc recording / reproducing system according to an embodiment of the present invention.

FIG. 2 shows a CD-ROM from the host computer 1 shown in FIG.
It is explanatory drawing which shows the format of CDB transmitted to the MRW drive 2.

FIG. 3 is a diagram showing a format of a defect table header of defect management information.

FIG. 4 is a diagram showing a format of a defect table descriptor of defect management information.

5 is a flowchart showing a data writing process according to claim 2 of the present invention in the CD-RW disc recording / reproducing system shown in FIG.

FIG. 6 is an explanatory diagram showing a data format when a CD image data is created in a format of ISO9660 by a normal process and a process according to the present invention.

FIG. 7: CD-RW specified in the CD-MRW standard
It is explanatory drawing which shows the format of a disc.

[Explanation of symbols]

1: Host computer 2: CD-MRW drive 3: Keyboard 4: Mouse 5: Display 6: Display control device 7: Write data storage device 8: CD image storage device 9: Program storage unit 10: RAM 11: CPU 12: Bus 20: Get defect table information command 40: Lead-in area 41: Program area 42: Lead-out area 43: MTA area 44: Pre-gap area 45: GAA area 46: Replacement area 47: User data area 48: STA area

Claims (4)

[Claims] 1. An information recording medium which does not have a defect management function and which can be used in a format or a writing method, and an information recording medium which can be used in a format or a writing method which has a defect management function, each of which does not have a defect management function. An information recording / reproducing apparatus capable of recording or reproducing with reproduction and a defect management function, and means for transferring defect management information of an information recording medium in a format having a defect management function to a request destination in response to an external request. An information recording / reproducing apparatus comprising: 2. An information recording medium that does not have a defect management function and that can be used in a format or write method, and an information recording medium that has a defect management function and that can be used in a format or write method do not have a defect management function. Alternatively, a means for recording or reproducing with reproduction and a defect management function, a means for judging whether or not the information recording medium in use is recorded in a format or a writing system having a defect management function, and the defect management by the means. When it is determined that the information recording medium is recorded in a format or a writing method having a function, a means for issuing an interface command requesting the transfer of defect management information, and a means for responding to the interface command issued by the means Is recorded in a format or writing method that has the defect management function described above. Means for acquiring the defect management information of the information recording medium, and position information of the defective portion of the information recording medium recorded in the format or the writing method having the defect management function based on the defect management information acquired by the means. Means for obtaining and holding, and means for constructing write data that avoids the defective portion of the information recording medium recorded in the format or writing method having the defect management function based on the position information of the defective portion held by the means And means for erasing the data of the information recording medium recorded in the format or writing method having the defect management function, and after erasing the data by the means, the data is recorded in the format or writing method having the defect management function. The written data that has been constructed on the information recording medium that has An information recording / reproducing system characterized by comprising means for writing in a format or a writing method which does not have the function. 3. A computer is provided with a defect management function for an information recording medium which does not have a defect management function and which can be used in a format or a writing method and an information recording medium which has a defect management function and can be used in a format or a writing method. Recording / reproduction without recording and recording / reproduction with a defect management function, a procedure for determining whether or not the information recording medium in use is recorded in a format or a writing method having a defect management function, and the procedure. When it is determined that the information recording medium has a defect management function and is recorded in a format or a writing method, a procedure for issuing an interface command requesting transfer of defect management information, and an interface issued by the procedure Format or writing method with the defect management function according to the command And a defect of the information recording medium recorded in a format or a writing method having the defect management function based on the defect management information acquired by the procedure. Procedure for obtaining and holding position information of a portion, and writing avoiding a defective portion of an information recording medium recorded in a format or writing method having the defect management function based on the position information of the defective portion held by the procedure A procedure for constructing data, a procedure for erasing the data of the information recording medium recorded in the format or the writing method having the defect management function, and a format having the defect management function after erasing the data by the procedure or The write data constructed on the information recording medium recorded by the write method Program for executing the procedure for writing the format or writing method without defect management. 4. A computer is provided with a defect management function for an information recording medium that does not have a defect management function and that can be used in a format or a writing method and an information recording medium that has a defect management function and that can be used in a format or a writing method. Recording / reproduction without recording and recording / reproduction with a defect management function, a procedure for determining whether or not the information recording medium in use is recorded in a format or a writing method having a defect management function, and the procedure. When it is determined that the information recording medium has a defect management function and is recorded in a format or a writing method, a procedure for issuing an interface command requesting transfer of defect management information, and an interface issued by the procedure Format or writing method with the defect management function according to the command And a defect of the information recording medium recorded in a format or a writing method having the defect management function based on the defect management information acquired by the procedure. Procedure for obtaining and holding position information of a portion, and writing avoiding a defective portion of an information recording medium recorded in a format or writing method having the defect management function based on the position information of the defective portion held by the procedure A procedure for constructing data, a procedure for erasing the data of the information recording medium recorded in the format or the writing method having the defect management function, and a format having the defect management function after erasing the data by the procedure or The write data constructed on the information recording medium recorded by the write method A computer-readable recording medium storing a program for executing the procedure for writing the format or writing method without defect management.