JP2008041189A - Recorder and recording method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reproduce data recorded in a recording medium, even if an error occurs, when finalizing processing is to be carried out for recordable recording medium. <P>SOLUTION: This device is provided with a writing means, with which when a recording error occurs during finalizing carried out by writing UDF information and VMG information, the UDF information and the VMG information are written in the unrecorded area of a recording medium, and the address information with the UDF information and the VMG information written is written in a RMA area. Thus, even if recording error occurs during finalizing processing, mounting is carried out, by referring to the start address information of the UDF information and the VMG information in the RMA. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a recording apparatus and a recording method, and more particularly to a technique suitable for use in recording information data on an optical disc that can be recorded only once.

  In recent years, digital video cameras capable of recording and reproducing image data and audio data on an optical disk such as a DVD have appeared. In this type of DVD video camera, the DVD-Video standard or the DVD-VR (Video Recording) standard is often used when recording moving image stream data on a DVD.

  The DVD-Video standard was originally designed for playback-only DVD-ROM discs, so it cannot be edited after recording, but it is compatible with playback-only players on the market. There is an advantage that is high. The DVD-VR standard has been devised on the premise that stream data is recorded in real time and edited later, and has a high degree of freedom, but on the other hand, there is a problem that compatibility with a playback-only player is low.

  When recording is performed according to the DVD video standard, it can be played back on a general DVD player by executing finalization processing. In finalization processing, various types of management information such as file system information and information defined by standards such as lead-in and lead-out information are recorded on the disc (for example, see Patent Document 1).

JP 2001-351314 A

  By the way, in the case of a write-once disc such as DVD-R, there is a problem that the management information recorded on the disc cannot be rewritten if a recording error occurs due to external factors such as vibration during the finalizing process. It was.

  For this reason, the disc in which such a writing error has occurred cannot be recognized by a recording device, a DVD playback device, a computer, or the like, and the recorded data cannot be played back. In particular, in video cameras, recorded video and audio cannot be obtained again, and there is a serious problem that important data cannot be reproduced.

  The present invention has been made in view of the situation as described above, so that data recorded on a recording medium can be reproduced even if an error occurs during the finalizing process on the write-once recording medium. The purpose is to.

The recording apparatus of the present invention writes the UDF information and the VMG information in an unrecorded area of a recording medium when a recording error occurs during the finalizing process in which the UDF information and the VMG information are written. It has a writing means for writing address information in which VMG information is written into the RMA area.
Another feature of the recording apparatus of the present invention is that a recording means for recording information data on the disk-shaped recording medium and a predetermined decision for managing the information data recorded on the disk-shaped recording medium are provided. Finalizing processing means for generating the finalized management information and executing finalization processing for recording the management information in a predetermined management information area on the disc-shaped recording medium by the recording means, and the finalizing processing means When it is detected that the management information has not been recorded well in the management information area, the management information is recorded in an unrecorded area on the disc-shaped recording medium.

The recording method of the present invention writes the UDF information and VMG information in an unrecorded area of a recording medium when a recording error occurs during the finalizing process in which UDF information and VMG information are written. It has a writing process which writes the address information which wrote VMG information into a RMA area.
Another feature of the recording method of the present invention is that a recording step for recording information data on a disc-shaped recording medium and a predetermined decision for managing the information data recorded on the disc-shaped recording medium are provided. A finalizing process for generating the recorded management information and recording the management information in a predetermined management information area on the disc-shaped recording medium. In the finalizing process, the management is performed during the finalizing process. When it is detected that the management information has not been recorded well in the information area, the management information is recorded in an unrecorded area on the disc-shaped recording medium.

The program of the present invention writes the UDF information and the VMG information in an unrecorded area of the recording medium when the recording error occurs during the finalizing process in which the UDF information and the VMG information are written. A computer is caused to execute a recording method including a writing step of writing address information into which information is written into an RMA area.
Another feature of the program of the present invention is that a recording process for recording information data on a disc-shaped recording medium and a predetermined step for managing the information data recorded on the disc-shaped recording medium are described. A finalizing process for generating the management information and performing a finalizing process for recording the management information in a predetermined management information area on the disc-shaped recording medium by the recording process, and in the finalizing process, When the management information is not properly recorded in the management information area, the computer is caused to execute a recording method for recording the management information in an unrecorded area on the disc-shaped recording medium. Features.

  According to the present invention, if a recording error occurs during the finalizing process by recording the UDF information and the VMG information, the UDF information and the VMG information are recorded in an unrecorded area (remainder area) of the recording medium. Since the address information to which the information and VMG information are written is recorded in the RMA area, even if a recording error occurs during the finalizing process, the head address information of the UDF information and VMG information in the RMA is referred to It becomes possible to mount, and data recorded on the recording medium can be reproduced satisfactorily.

(First embodiment)
Hereinafter, embodiments of the present invention will be described.
FIG. 1 is a block diagram showing a configuration of a DVD video camera 100 to which the present embodiment is applied. The DVD video camera 100 can store moving image data shot on a DVD-R, which is a write-once medium, in a DVD-Video format.

  The DVD video camera 100 includes an imaging unit 101, a video signal processing unit 102, an audio signal processing unit 103, a microphone 104, a frame memory 105, a CPU (Central Processing Unit) 106, a video / audio codec 107, an analog front end 108, and an operation unit 109. have. Further, the display unit 110, the flash memory 111, the stream buffer 112, the multiplexer / demultiplexer (multiplexing processing unit) 113, the external interface 115, and the like are provided.

  In FIG. 1, an imaging unit 101 converts a subject image and sound into an electrical signal, and has a shooting function for moving images and still images. The video signal processing unit 102 performs A / D conversion and appropriate image processing on the video signal obtained by the imaging unit 101. The microphone 104 captures external sound.

  The audio signal processing unit 103 performs A / D conversion and appropriate signal processing on the audio signal obtained by the microphone 104. The frame memory 105 buffers the video / audio data obtained by photographing until it is encoded / multiplexed at the time of recording, and outputs the demultiplexed / decoded video / audio data at the time of reproduction. It is to be buffered.

  The video / audio codec 107 compresses and encodes video data / audio data. The analog front end (analog FE) 108 reads / writes data from / to the optical disc 114, and constitutes a writing means in this embodiment. The operation unit 109 is for receiving an operation from the user and operating the DVD video camera 100. The display unit 110 has a liquid crystal screen (not shown), displays a camera image at the time of recording, and a playback image at the time of playback, and has a function of displaying a setting menu for the DVD video camera 100 and the like. .

  The flash memory 111 stores information that cannot be written in real time on the optical disc 114 during recording and that needs to be retained even in a power-off state. The flash memory 111 is also used for storing information necessary for returning to a state in which photographing can be performed when a battery is removed during photographing.

  The stream buffer 112 is for holding multiplexed stream data. A multiplexing processing unit (multiplexer / multiplexer) 113 multiplexes the compression-encoded video / audio data to generate stream data, and generates video / audio data by demultiplexing the stream data. . The optical disc 114 is a recordable medium such as a DVD-R or DVD-RW, and video and still images are recorded / reproduced on this medium.

Here, the DVD video standard used in this embodiment will be briefly described.
(About the file system used in the DVD-Video standard)
The DVD-Video standard uses a “UDF bridge” as a file system. The purpose of the UDF bridge is to provide access means for both the logical formats “UDF Version 1.02” and “ISO-9660” on the premise of a read / playback-only disc. Also, by supporting ISO-9660, which is widely used as a logical format for CD-ROM, DVDs can be accessed even by devices that do not support UDF.

(When recording in real time in DVD-Video format)
FIG. 9 shows the data structure of a disc recorded in the DVD-Video standard. In order from the inner periphery, they are OPC Area, RMA, Lead In, file system (UDF bridge), VMG, VTS, and Lead Out. The VMG stores information related to the menu screen such as a list of captured content.

  VTS (Video Title Set) is composed of VTSI, TMP_VMG, VTSTT_VOBS, and VTSI_BUP. VTSI stores control information for reproducing stream data in the VTS. This control information includes information such as PG (corresponding to REC / REC Pause unit). The TMP_VMG stores a temporary VMG for the content recorded so far so that the content can be reproduced even when the file system area before finalization does not exist. VTSTT_VOBS is composed of VOBU (Video Object Unit) which is stream data. VTSI_BUP is a backup of VTSI and stores exactly the same data as VTSI.

  Note that Lead In, Lead Out, and the file system are created when a finalize operation is executed. Only when a file system is created by the finalizing operation, playback on a general DVD player is possible. However, for write-once media such as DVD-R, if a file system is created by finalization, it cannot be overwritten. .

  The RMA is an area for recording the state of the disc, and is updated as necessary when the state of the disc changes. When finalization is completed, a parameter indicating finalization is recorded.

  Also, during video recording, video / audio data is compression-encoded / multiplexed and recorded on the disk as stream data as VTSTT_VOBS, but once it is buffered in the built-in memory and accumulated a certain amount, Is written to. This writing unit is called a cell.

  VTSI, TMP_VMG, and VTSI_BUP are not determined until all stream data in the VTS has been shot. Therefore, regarding write-once media such as DVD-R, it is not possible to write such information to a disc when writing stream data for each cell. For this reason, PG information (including start / end cell numbers and the like) in VTSI, information generated every time a cell is written, and the like are stored in the built-in memory. When dividing the VTS, VTSI and VTSI_BUP are created based on the information stored in the built-in memory and written to the disk.

Based on the above description, the timing of writing each part in a DVD-Video format disc is summarized as shown in FIG.
The OPC Area is a test writing area for determining recording parameters, and is used as necessary.

(File structure after finalization in DVD-Video)
When a file system area is created by finalization, each area in FIG. 10 can be accessed as a file via the file system. The DVD-Video standard also defines requirements for this file structure. For example, when a disc on which data as shown in FIG. 11 (a) is written is finalized, the file structure is as shown in FIG. 11 (b). In the figure, the numbers (1) to (6) given to (a) and (b) respectively indicate the correspondence between the data area before finalization and the file on the file system after finalization. .

(Data access in UDF file system)
In the UDF file system, a structure called a file entry is used to manage directories and data files. In addition to the file attributes, the file entry stores information such as the recording position and size of the file data on the disk. In other words, in order to access a certain file, it is only necessary to find the file entry of the file.

  The position of the file entry on the disk is described in a file identifier descriptor (File Identifier Descriptor) in the parent directory of the file. Therefore, the access to the desired file is achieved by repeating the process starting from the root directory, such as “file identification descriptor in the directory → file entry → file or directory one level below”. .

  Regarding the file entry of the root directory, unlike other directories, position information is described in a file set descriptor (File Set Descriptor) at the head of the volume. For example, the file structure of the UDF file system in the disk having the file structure of FIG. 8 is as shown in FIG. Here, when an attempt is made to access the file “/VIDEO_TS/VIDEO_TS.IFO”, the file is accessed by following the paths shown in FIGS.

Next, the photographing operation will be described.
At the time of shooting, the electrical signal obtained by the imaging unit 101 is converted into digital data by the video signal processing unit 102 and buffered in the frame memory 105. At the same time, the audio signal acquired from the microphone 104 is converted into digital data by the audio signal processing unit 103 and buffered in the frame memory 105. The video / audio data stored in the frame memory 105 and the audio memory are respectively compressed by the video / audio codec 107, multiplexed in the multiplexing processing unit 113, and held in the flash memory 111 as stream data.

  The flash memory 111 has a capacity sufficient to hold stream data for one cell. When the stream data is stored for one cell, the stream data is written to the optical disc 114 through the analog front end 108. Then, cell information related to the written stream data is written to the flash memory 111. When dividing the VTS, management data such as VTSI is created based on the cell information and PG information, and written to the optical disc 114.

  The operation unit 109 is an interface for a user to perform operations such as recording / playback operation instructions. The display unit 110 has a liquid crystal panel (not shown) for displaying a reproduced image when reproducing a subject image captured by the imaging unit 101 or data in the optical disc 114, and is used for setting the apparatus. It also has functions such as necessary menu display.

  During reproduction, data read from the optical disc 114 by the analog FE 108 is stored in the stream buffer 112, separated into a video stream and an audio stream by the multiplexing processing unit 113, and stored in the frame memory 105. The developed video / audio data is subjected to appropriate signal processing by the video signal processing unit 102 and the audio signal processing unit 103, and then output from a liquid crystal panel or a speaker (not shown) of the display unit 110, respectively.

  The external interface 115 is an external interface such as USB, and is used for communication with a personal computer or the like. When a personal computer is connected to the external interface 115, this apparatus is recognized as a storage device by the personal computer, and File transmission / reception is possible.

Next, the finalizing process will be described.
When receiving the finalize instruction from the operation unit 109, the CPU 106 starts the finalization process. If the VTS is not closed, close the VTS.
Here, in order to simplify the explanation, FIG. 2 shows a follow chart of the finalizing process and FIG. 3 shows an image of a disc corresponding to the flowchart in the case where a recording error does not occur at the time of finalizing.

  As shown in FIG. 2, the finalizing process is started in step S201. The disc image in step S201 is FIG. 3 (1), in which n VTSs are recorded and the title is closed. The OPC Area and RMA are updated, and the other areas are not recorded at this stage.

  In step S202, a space of a size capable of recording UDF data and VMG data is secured in an unrecorded area from the outer periphery of the disk to the location where the Lead Out is written from the nth VTS recording end location. Lead Out writing location and its size, UDF data, VMG data size is fixed length. At this time, the state of the disk has not changed from the state of step S201, but FIG. 3 (2) shows an image diagram.

In step S203, VMG data is created based on TMP_VMG, and UDF data is created in step S204.
VMG data is written in step S205, and UDF data is written in step S206. A disk image is shown in FIG.

In step S207, since no writing error has occurred in steps S205 and S206, padding processing is performed from the recording end position of the nth VTS to the position where the Lead Out is written. Padding processing in this embodiment indicates writing data 0 (Null data). FIG. 3 (4) shows a disk image.
In step S208, Lead Out is written. A disk image is shown in FIG.
In step S209, Lead In is written. A disk image is shown in FIG.
In step S210, RMA is written as finalized. A disk image is shown in FIG.
In step S211, the finalizing process is terminated.

Next, a case where a recording error occurs during writing will be described with reference to a flowchart shown in FIG. 4 and a disk image shown in FIG.
Note that if a recording error does not occur during writing, the operation is exactly the same as described above, and a description of the processing when a recording error does not occur is omitted.

  As shown in FIG. 4, finalization processing is started in step S401. The disc image in step S401 is shown in FIG. 5 (1), in which n VTSs are recorded and the title is closed. The OPC Area and RMA are updated, and the other areas are not recorded at this stage.

  In step S402, a space of a size capable of recording UDF data and VMG data is secured in an unrecorded area from the outer periphery of the disc to the location where the Lead Out is written from the recording end location of the nth VTS. Lead Out writing location and its size, UDF data, VMG data size is fixed length. At this time, the disk state has not changed from the state of step S401, but FIG. 5 (2) shows an image diagram.

In step S403, VMG data is created based on TMP_VMG, and UDF data is created in step S404.
In step S405, VMG data is written. At this time, if a recording error has occurred, the process proceeds to step S418 in step S406, and if no recording error has occurred, the process proceeds to step S407.

  In step S407, the UDF is written. At this time, if a recording error has occurred, the process proceeds to step S418 in step S408, and if not, the process proceeds to step S409. That is, if a recording error occurs during VMG and UDF writing, the process proceeds to step S418. FIG. 5 (3) shows an image diagram.

In step S418, the WR_ERROR flag is set to 1 to hold that a recording error has occurred during finalization.
In step S419, VMG data is written in the area secured in step S402.
In step S420, UDF data is written in the area secured in step S402. An image diagram is shown in FIG.

  In step S409, an unrecorded area is padded. An image diagram is shown in FIG. If a recording error occurs during the Padding process, the WR_ERROR flag is set to 2 in step S421 to hold that a recording error has occurred during finalization.

In step S411, Lead Out is written. An image diagram is shown in FIG. If a recording error occurs during Lead Out writing, the WR_ERROR flag is set to 2 in step S422 to hold that a recording error has occurred during finalization.
In step S413, Lead In is written. An image diagram is shown in FIG. If a recording error occurs, the WR_ERROR flag is set to 2 in step S423 to hold that a recording error has occurred.

  In step S415, RMA is written. An image diagram is shown in FIG. If a recording error occurs, the process proceeds to step S424, the area is moved in the RMA, and the RMA is written again. The RMA is an area having a plurality of Ecc blocks, and writing to the RMA area is writing of 1 Ecc block. FIG. 6 shows details of RMA. Therefore, if a recording error occurs, it moves to the next Ecc Block area and records again. This process is repeated until no recording error occurs and recording is completed.

At this time, information indicating that the finalization processing has been completed and information indicating that a recording error has occurred during the finalization, UDF data, or VMG data recording are written in the RMA when the WR_ERROR flag is 1. Also, information indicating address information in which UDF data is recorded is written. When the WR_ERROR flag is 2, information indicating that a recording error has occurred during writing of an area other than during recording of UDF data or VMG data is written.
In step S417, the finalizing process is terminated.

  When the finalizing process is completed, information indicating that there has been a recording error during the finalizing process is displayed on the display unit 110, and a message is displayed prompting the user to back up data through the external interface 115 (FIG. 1).

  As described above, if a recording error occurs during recording of UDF data or VMG data during finalization, a write area is secured in an unrecorded area, and UDF data and VMG data are recorded again. If a recording error occurs during recording in another area, recording in that area is stopped and the process proceeds to the next process.

  Next, a case where the disk capacity has been recorded and an unrecorded area sufficient to re-record UDF data and VMG data could not be secured will be described with reference to the flowchart of FIG.

  In the flowchart of FIG. 7, the difference from the flowchart of FIG. 4 is that when a recording error occurs when UDF data or VMG data is recorded, the WR_ERROR flag is set to 1 to hold that the recording error has occurred. It is. Other processes are the same as those in FIG.

  However, the information recorded in the RMA is information indicating that the finalization has been completed, and if the WR_ERROR flag is 1, information indicating that a recording error has occurred during recording of UDF data or VMG data, and the final VTS (title), Information indicating the address of the TMP_VMG data described in the background art is recorded.

When the WR_ERROR flag is 2, information indicating that a recording error has occurred other than during recording of UDF data or VMG data is recorded.
When the finalizing process is completed, information indicating that there has been a recording error during the finalizing process is displayed on the display unit 110, and a message is displayed prompting the user to back up data through the external interface 115 (FIG. 1).

(Other embodiments according to the present invention)
Each means constituting the recording apparatus and each step of the recording method in the embodiment of the present invention described above can be realized by operating a program stored in a RAM or ROM of a computer. This program and a computer-readable recording medium recording the program are included in the present invention.

  In addition, the present invention can be implemented as, for example, a system, apparatus, method, program, storage medium, or the like. Specifically, the present invention may be applied to a system including a plurality of devices. The present invention may be applied to an apparatus composed of a single device.

  In the present invention, a software program (in the embodiment, a program corresponding to the flowcharts shown in FIGS. 2, 4 and 7) for realizing the functions of the above-described embodiments is directly or remotely supplied to the system or apparatus. To do. In addition, this includes a case where the system or the computer of the apparatus is also achieved by reading and executing the supplied program code.

  Accordingly, since the functions of the present invention are implemented by computer, the program code installed in the computer also implements the present invention. In other words, the present invention includes a computer program itself for realizing the functional processing of the present invention.

  In that case, as long as it has the function of a program, it may be in the form of object code, a program executed by an interpreter, script data supplied to the OS, or the like.

  Examples of the recording medium for supplying the program include a floppy (registered trademark) disk, hard disk, optical disk, magneto-optical disk, MO, CD-ROM, CD-R, and CD-RW. In addition, there are magnetic tape, nonvolatile memory card, ROM, DVD (DVD-ROM, DVD-R), and the like.

  As another program supply method, a browser on a client computer is used to connect to an Internet home page. The computer program itself of the present invention or a compressed file including an automatic installation function can be downloaded from the homepage by downloading it to a recording medium such as a hard disk.

  It can also be realized by dividing the program code constituting the program of the present invention into a plurality of files and downloading each file from a different homepage. That is, a WWW server that allows a plurality of users to download a program file for realizing the functional processing of the present invention on a computer is also included in the present invention.

  In addition, the program of the present invention is encrypted, stored in a storage medium such as a CD-ROM, distributed to users, and key information for decryption is downloaded from a homepage via the Internet to users who have cleared predetermined conditions. Let It is also possible to execute the encrypted program by using the downloaded key information and install the program on a computer.

  Further, the functions of the above-described embodiments are realized by the computer executing the read program. In addition, based on the instructions of the program, an OS or the like running on the computer performs part or all of the actual processing, and the functions of the above-described embodiments can also be realized by the processing.

  Further, the program read from the recording medium is written in a memory provided in a function expansion board inserted into the computer or a function expansion unit connected to the computer. Thereafter, the CPU of the function expansion board or function expansion unit performs part or all of the actual processing based on the instructions of the program, and the functions of the above-described embodiments are realized by the processing.

1 is a block diagram illustrating an example of the configuration of a DVD video camera according to an embodiment of the present invention. It is a flowchart which shows an example of the process sequence of embodiment of this invention, and demonstrates a process when there is no recording error. It is a figure which shows embodiment of this invention and demonstrates the image when there is no recording error. 6 is a flowchart illustrating an example of a processing procedure when there is a recording error and an unrecorded area according to the embodiment of this invention. It is a figure which shows embodiment of this invention and demonstrates an image when there exists a recording error and an unrecorded area | region. It is a figure which shows the detail of RMA. 7 is a flowchart illustrating a processing procedure when there is a recording error and there is no unrecorded area according to the embodiment of this invention. FIG. 6 is a diagram illustrating an image when there is a recording error and no unrecorded area according to the embodiment of this invention. It is the figure explaining the data structure on the disc in DVD-Video specification It is the figure which showed the timing which writes the data in the disk in the video camera which records in DVD-Video format FIG. 3 is a diagram showing a correspondence between data arrangement on a disc and access via a file system in a disc recorded in DVD-Video format. It is the figure which showed the example of the management area | region of a UDF file system in DVD-Video format.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 DVD video camera 101 Image pick-up part 102 Image | video signal processing part 103 Audio | voice signal processing part 104 Microphone 105 Frame memory 106 CPU (central processing unit)
107 video / audio codec 108 analog front end 109 operation unit 110 display unit 111 flash memory 112 stream buffer 113 multiplexer / demultiplexer 114 optical disk 115 external interface

Claims (16)

  When a recording error occurs during the finalizing process in which the UDF information and VMG information are written, the UDF information and VMG information are written to an unrecorded area of the recording medium, and the UDF information and VMG information are written to the address information. A recording apparatus comprising a writing means for writing the data in the RMA area.   2. The recording apparatus according to claim 1, wherein, when a recording error occurs during the finalizing process, the writing unit writes address information of a management file indicating an intermediate state until the finalizing process is completed into the RMA area. .   2. The recording unit according to claim 1, wherein when a recording error occurs other than during the finalizing process in which the UDF information, the VMG information, and the RMA information are written, the process is stopped and the process proceeds to the next process. The recording device described in 1.   The writing means performs recording by moving an area in the RMA area until a recording error occurs normally when a recording error occurs during the finalizing process in which the RMA information is written. The recording apparatus according to claim 1.   2. The recording apparatus according to claim 1, wherein when a recording error occurs during the finalizing process, the writing unit records information indicating that a recording error has occurred during the finalizing process in the RMA area.   6. A backup prompting means for notifying that the finalizing process could not be normally performed when a recording error occurs during the finalizing process and urging the user to back up the recorded data. The recording apparatus according to any one of the above.   The data writing by the writing means is performed during a finalizing process for an optical disc recorded in a DVD-Video format and recordable only once. The recording device described.   The writing means records UDF information that is management information for managing a recorded file, VMG information, and RMA information that is management information of a recording medium, Lead In information, and Lead Out information. The recording apparatus according to any one of 1 to 6. Recording means for recording information data on a disc-shaped recording medium;
Finalizing processing for generating predetermined management information for managing information data recorded on the disk-shaped recording medium and recording the information in a predetermined management information area on the disk-shaped recording medium by the recording means A finalization processing means to be executed,
When the finalizing processing unit detects that the management information has not been recorded well in the management information area during the finalizing process, the management information is recorded in an unrecorded area on the disc-shaped recording medium. A recording apparatus.   10. The recording apparatus according to claim 9, wherein the finalizing processing unit records position information indicating a recording position of the management information in the unrecorded area in a specific area on the disc-shaped recording medium.   11. The finalization processing unit records flag information indicating that the management information has not been recorded well in the management information area during the finalization process in the specific area. The recording device described in 1.   When a recording error occurs during the finalizing process in which the UDF information and VMG information are written, the UDF information and VMG information are written to an unrecorded area of the recording medium, and the UDF information and VMG information are written to the address information. A recording method characterized by comprising a writing step of writing in the RMA area. A recording process for recording information data on a disk-shaped recording medium;
Finalization processing for generating predetermined management information for managing information data recorded on the disc-shaped recording medium, and executing finalization processing for recording in a predetermined management information area on the disc-shaped recording medium A process,
In the finalizing process, when it is detected that the management information has not been recorded well in the management information area during the finalizing process, the management information is recorded in an unrecorded area on the disc-shaped recording medium. And a recording method.   When a recording error occurs during the finalizing process in which the UDF information and VMG information are written, the UDF information and VMG information are written to an unrecorded area of the recording medium, and the UDF information and VMG information are written to the address information. A program that causes a computer to execute a recording method that includes a writing step of writing data into an RMA area. A recording process for recording information data on a disk-shaped recording medium;
Finalizing processing for generating predetermined management information for managing information data recorded on the disc-shaped recording medium, and recording the information in a predetermined management information area on the disc-shaped recording medium by the recording step. A finalizing process to be executed,
In the finalizing process, when it is detected that the management information has not been recorded well in the management information area during the finalizing process, the management information is recorded in an unrecorded area on the disc-shaped recording medium. A program for causing a computer to execute a recording method.   16. A computer-readable recording medium on which the program according to claim 14 or 15 is recorded.

Images