JP2005243120A - Information recording device, its control method, information recording program, and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To properly record/update file management information even when a data recording operation in a recording medium is interfered with by discontinuation of power supplying. <P>SOLUTION: The information recording device is provided with a recording control section 2 for controlling a recording operation, and the recording control section 2 records identification information regarding whether the recording processing of recording target data is completed or not as the management information of the recording target data in the recording medium of a disk drive 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an information recording apparatus that records various data and management information thereof on a recording medium, a control method thereof, an information recording program, and a recording medium.

  2. Description of the Related Art Conventionally, information recording apparatuses that record various data handled by a computer have been widely used that use a recording medium such as a hard disk or a magneto-optical disk. In a general information recording apparatus, data is recorded in a recording area on a recording medium. After that, when the recording data becomes unnecessary, the recording data is deleted from the storage area. As a result, the information recording apparatus can reuse the storage area after data deletion as an area for recording new data.

  In these information recording apparatuses, a file system is generally used in order to improve the convenience of data access. A file system is a data management system constructed to manage the usage status of a recording area on a recording medium, and manages recording data in units of files and the directory structure to which each file belongs. It is.

  As an example of a file system used for an information recording device, UDF (Universal Storage Technology Association) UDF (Universal Disc) introduced in DVD (Digital Versatile Disc) etc. in addition to widely used FAT (File Allocation Table) Disk Format) is known (see Non-Patent Document 1).

  In these file systems, file management information of the recording target data is recorded on a recording medium together with recording target data (actual data) in units of files. Here, the file management information is identification information (extension, attribute, update date, data size, etc.) for specifying the recording target data, recording position information (address information on the recording medium) of the recording target data, etc. Is included.

  In the file system, not only file management information but also directory management information is often recorded on a recording medium together with recording target data. For example, the UDF includes, as directory management information, a descriptor for managing the recording position (data) of management information of files belonging to each directory.

  Next, a method for recording new data on a recording medium using a file system by a conventional information recording apparatus will be described with reference to FIG. FIG. 7A is an explanatory diagram showing the state of the data recording area in the middle of the data recording operation on the recording medium, and FIG. 7B is a diagram after the completion of the data recording operation of FIG. It is explanatory drawing which shows the mode of a data recording area.

  7A, the data area on the recording medium 71 includes a used area 72 that has already been used, a management information recording area 73 in which management information of recorded data (corresponding to the recorded data area 74) is recorded, It consists of a recorded data area 74 in which data has already been recorded and a recording data area 75 in which a new data recording operation is in progress. Generally, the file management data corresponding to the new data being recorded in the recording data area 75 is temporarily recorded not in the recording medium but in a memory provided separately until the recording process of the new data is completed. (For example, refer to Patent Document 1).

  On the other hand, in FIG. 7B, the data area on the recording medium 71 includes a used area 72 that has already been used and a recorded data area 74 on which data has already been recorded. It is.

  However, in FIG. 7B, since the recording of new data has been completed, the recording data area 75 in FIG. 7A replaces the recorded data area 77 in a state where the data recording has been completed. The management information recording area 73 in FIG. ZZ (a) is updated so as to include management information of data recorded in the recorded data area 77 in addition to management information of data recorded in the recorded data area 74. This is a management information recording area 76.

Here, as described above, the management information in the management information recording area 76 is the management information corresponding to the recording data area 75 temporarily managed on the memory after the recording operation of the recording data area 75 is completed. The management information in the management information recording area 73 is updated so as to reflect the contents of. If the recorded data area 74 and the recorded data area 77 are continuous data areas, the recorded data area 74 and the recorded data area 77 are grasped as an integrated area, and Management information may be recorded in the management information recording area 76.
"Universal Disk Format Specification Revision 2.0.1" JP 2002-230941 A

  However, when a conventional information recording apparatus records new data on a recording medium using a file system, if the data recording operation on the recording medium is interrupted for some reason, the file management information is appropriately recorded on the recording medium.・ Since it could not be updated, there was a problem with subsequent file management.

  For example, when the information recording device is driven by a battery, recording of new data is already completed if the drive battery is removed from the housing or the power supply voltage drops due to the battery running out during the recording operation to the recording medium. Even if the file management information is stored, the file management information managed in the memory is erased and cannot be recorded on the recording medium. As a result, on the recording medium, the file management information corresponding to the new recording data has not been recorded / updated, so there is recording data that is not properly associated with the file management information (inconsistent with the file management information). Will do.

  In such a case, when a computer application (software) accesses the data on the recording medium in the information recording apparatus via the file system, the application accessed even though the file system itself seems to function normally. Since the recorded data always accesses data that is not properly associated with the file management information, a malfunction occurs. Such a problem is caused by, for example, an application that reproduces information such as a moving image, a still image, or audio on a recording medium being a file (for example, content data, This occurs when referring to (playlist data, thumbnail data).

  As a technique for solving such a problem, as a memory for temporarily storing file management information, a volatile memory is used instead of a volatile memory, and a nonvolatile memory that retains stored contents even when power supply is interrupted is used. When the recording operation to the recording medium is interrupted due to supply interruption or the like, the file management information is recorded / updated by recording the file management information held in the nonvolatile memory on the recording medium after the power supply is restored. A method can be considered.

  However, this method is not very practical because the cost of the nonvolatile memory is high and the consistency between the nonvolatile memory and the recording medium stored in the information recording apparatus needs to be confirmed.

  In addition, as a technique for recording / updating file management information without using a non-volatile memory, every time a predetermined amount of data recording is completed, the file management information on the memory is recorded on a recording medium, thereby recording the data. A method for reducing the amount of data not associated with the file management information, which occurs when the operation is interrupted, can be considered.

  However, with this method, file management information in the memory is written to the recording medium every time a predetermined amount of data is recorded, so seek processing on the recording medium frequently occurs and recording reliability decreases. Further, since the number of times of rewriting management information on the recording medium increases, there arises a problem that the medium is locally deteriorated.

  The present invention has been made in view of the above problems, and an object of the present invention is to appropriately record / update file management information even when a data recording operation to a recording medium is interrupted. An information recording apparatus, a control method thereof, an information recording program, and a recording medium are provided.

  In order to solve the above problems, an information recording apparatus according to the present invention is an information recording apparatus that records recording target data and management information of the recording target data on a recording medium, and performs a recording operation of the information recording apparatus. An identification information recording means for recording, on the recording medium, identification information as to whether or not the recording processing of the recording target data has been completed as management information of the recording target data. It is characterized by having.

  According to the above configuration, when the information recording apparatus records the recording target data on the recording medium by the function of the recording control unit, whether the recording processing of the recording target data is completed by the identification information recording unit. Is recorded on the recording medium.

  The content of the identification information is not particularly limited as long as it can identify whether or not the recording process of the recording target data has been completed, but information indicating the end of the recording operation of the recording target data or the recording target Information indicating the start of the data recording operation can be used.

  For example, the identification information recording means records the specific identification information on the recording medium before the start of the recording operation of the data to be recorded, and when the recording operation ends normally, the identification information recorded before the start of the operation Can record different identification information on a recording medium. Note that where the information recording apparatus according to the present invention records the identification information on the recording medium is not limited.

  As a result, whether or not the recording process of the data to be recorded has been completed based on the identification information recorded on the recording medium even when the data recording process to the recording medium is interrupted due to interruption of power supply or the like. Can be identified. Therefore, the file system and the application can specify the recording data that has not been recorded, so that appropriate file management can be realized.

  Further, according to the present invention, it is not necessary to use a non-volatile memory for recording / updating management information, so that the information recording apparatus can be realized at low cost. Furthermore, according to the present invention, since the frequency of recording / updating management information is substantially the same as that of a conventional information recording apparatus, the problem of deterioration of the recording medium due to an increase in the frequency of recording / updating management information does not occur.

  If the present invention is expressed as a control method for an information recording apparatus, it is a control method for an information recording apparatus for recording recording target data and management information of the recording target data on a recording medium, As information, identification information as to whether or not the recording process of the recording target data is completed is recorded on a recording medium.

  Further, in the information recording apparatus according to the present invention, in the above configuration, the recording control unit controls a recording operation of the information recording apparatus based on a file system, and corresponds to the recording target data. It is also preferable to include attribute information recording means for recording the attribute information of the file system on a recording medium.

  According to the above configuration, since the attribute information recording unit records various attribute information of the file system corresponding to the recording target data on the recording medium, the data recorded on the recording medium is managed and associated with the file system. Will be. Examples of file system attribute information corresponding to the recording target data include the name of the file / directory to which the recording target data belongs.

  For example, if the file system is UDF, the attribute information recording unit may record the attribute information in a File Identifier Descriptor or a Logical Volume Identifier Descriptor.

  Further, in the information recording apparatus according to the present invention, in the above configuration, the recording control unit detects the identification information recorded on the recording medium, and based on the detection result, the recording process is not completed. It is also preferable to include a data deleting means for deleting from the recording medium.

  According to the above configuration, the identification information recorded on the recording medium is detected by the data deleting unit, and based on the detection result, data that has not been recorded is specified and deleted from the recording medium. The Therefore, it is possible to prevent the file system or application from accessing the recording data that has not been recorded, so that appropriate file management can be realized.

  Further, in the information recording apparatus according to the present invention, in the above configuration, the recording control unit detects the identification information recorded on the recording medium, and based on the detection result, the recording process is not completed. It is also preferable to provide data correction means for correcting the data on the recording medium.

  According to the above configuration, the identification information recorded on the recording medium is detected by the data correction unit, and based on the detection result, data that has not been recorded is specified, and the data is recorded on the recording medium. Will be corrected. Therefore, it is possible to prevent the file system or application from accessing the recording data that has not been recorded, so that appropriate file management can be realized.

  Further, in the information recording apparatus according to the present invention, in the above configuration, the recording control unit detects the identification information recorded on the recording medium, and based on the detection result, the recording process is not completed. It is also preferable to provide data correction means for correcting the data on the recording medium.

  According to the above configuration, the identification information recorded on the recording medium is detected by the data correction unit, and based on the detection result, data that has not been recorded is specified, and the data is recorded on the recording medium. Will be corrected. Therefore, it is possible to prevent the file system or application from accessing the recording data that has not been recorded, so that appropriate file management can be realized.

  Further, in the information recording apparatus according to the present invention, in the above configuration, the recording control unit detects the identification information recorded on the recording medium, and based on the detection result, the recording process is not completed. It is also preferable to provide a notification means for notifying the outside of the presence of the message.

  According to the above configuration, the notification means detects the identification information recorded on the recording medium, and based on the detection result, the presence of data that has not been recorded is notified to the outside. The user or the like can know the data abnormality on the recording medium. As a form of notification by the notification means, any means such as a message display on a display screen or a message sound by a speaker can be adopted.

  An information recording program according to the present invention causes a computer to realize recording control means included in the information recording apparatus.

  A recorded computer-readable recording medium according to the present invention records the information recording program.

  According to these configurations, the same operation effect as that of the information recording apparatus can be realized by causing the computer to read and execute the information recording program.

  As described above, according to the present invention, even when the data recording process to the recording medium is interrupted due to the interruption of the power supply or the like, the recording of the recording target data is performed based on the identification information recorded on the recording medium. It becomes possible to identify whether or not the processing is completed. Therefore, the file system and the application can specify the recording data for which the recording process has not been completed, so that it is possible to realize appropriate file management.

  Further, according to the present invention, it is not necessary to use a non-volatile memory for recording / updating management information, so that the information recording apparatus can be realized at low cost. Furthermore, according to the present invention, since the frequency of recording / updating management information is substantially the same as that of a conventional information recording apparatus, the problem of deterioration of the recording medium due to an increase in the frequency of recording / updating management information does not occur.

  One embodiment of the present invention will be described below with reference to FIGS.

[1. Configuration of information recording apparatus]
FIG. 1 is a block diagram showing a functional configuration of the information recording apparatus 1 according to the present embodiment. As shown in FIG. 1, the information recording apparatus 1 includes a recording control unit 2, a CPU (computer) 3, a disk drive 4, a buffer memory 5, and an interface 6.

  In addition, the recording control unit 2 records, as management information for the recording target data, identification information recording unit 2a that records on the disc identification information (recording management information described later) indicating whether or not the recording processing of the recording target data has been completed. Attribute information recording unit 2b that records the attribute information of the file system corresponding to the recording target data on the disc, data deletion unit 2c that deletes inconsistent data that has not been recorded, from the disc, and recording processing that has not been completed A data correction unit 2d that corrects the matching data on the disk, and a notification unit 2e that notifies the outside of the presence of inconsistent data for which recording processing has not been completed.

  The recording control unit 2 is a logical block that controls the recording operation of the information recording apparatus 1, and the CPU 3 comprehensively controls the operations of the various configurations described above in the information recording apparatus 1. The disk drive 4 is a drive device such as a hard disk drive that writes data to and reads data from a disk that is a recording medium using a built-in head unit and a disk drive device. The buffer memory 5 is a semiconductor memory that temporarily stores calculation results of the recording control unit 2 and the CPU 3, data to be written and read by the disk drive 4, and the like. The interface 6 is an interface device for connecting the information recording device 1 and an external device (computer display, etc.).

  The function of the recording control unit 2 may be realized by causing the CPU 3 to execute an information recording program. This information recording program may be in a form in which what is recorded on an external disk such as a CD-ROM is read and used by an external disk drive, or what is stored on the disk of the disk drive 4 is read. It may be in a form to be used. In addition, a form in which the information recording program is downloaded from an external network via the interface 6 and stored in a disk of the disk drive 4 is also conceivable.

[2. Overview of UDF]
The information recording apparatus 1 of this embodiment performs data recording on a recording medium based on UDF (file system). First, UDF will be described. In UDF, in order to handle a disk as a recording medium as a logical volume, the recording area of the disk is divided into units called sectors, and a logical sector number LSN (Logical Sector Number) is set to 0 for each sector. Assign to the final value.

  Further, in the volume space of the disk, an area for recording volume structure management information and a partition area for recording files and directories are provided. Also, a logical block number LBN (Logical Block Number) is assigned from 0 to the final value for sectors in each partition area.

  In UDF, each piece of information in each partition area is stored in a structure called a descriptor for each purpose. For example, the position information of the partition area is recorded in a descriptor in the management information area of the volume structure.

  All descriptors have an identifier field called Descriptor Tag at the head of the structure, and the type of descriptor is identified by this field. Table 1 is a data table showing an exemplary structure of the Descriptor Tag.

  FIG. 8 is an explanatory diagram showing an example of the structure of the partition area in the UDF. FIG. 8A shows the area structure in the recording area of the disc. In FIG. 8A, the data area 82 is called an FSD sequence, and a plurality of FSD (File Set Descriptors) 83 to 85 are recorded in this data area. Here, the FSD manages the directory structure and location information of the root directory serving as the base point of the data area 88, and Table 2 is a data table showing an example of the structure of the FSD.

  In Table 2, for example, in the File Set Descriptor Number field, a different number is stored for each FSD, and the FSD having the largest number is valid. In the Root Directory ICB field, location information of the root directory is recorded. The Interchange Level field stores a compatibility level that defines the compatibility of the partition area, and the Character Set List field records the character string type used in the partition. Further, the next FSD sequence can be recorded in the Next Extent field.

  The reading of the FSD sequence is terminated when the TD is read, when the unrecorded area is read, or when the entire area of the FSD sequence is read.

  In FIG. 8A, a data area 86 is a TD (Terminating Descriptor) indicating the end of the FSD sequence. Table 3 is a data table showing the structural standard of TD. The logical block number LBN is recorded in the Location field of the Descriptor Tag.

  In FIG. 8A, a data area 87 is called SBD (Space Bit Map), and manages a free area of each logical block in the partition area. The SBD position information is recorded in a descriptor in the management information area of the volume structure. Table 4 is a data table showing the structural standard of SBD. The SBD manages the empty area information of each logical block in units of bits and is stored in the Bitmap field.

  In FIG. 8A, a data area 88 is a directory structure and data area for managing file data and file data. An example of the structure under the root directory is as shown in FIG. 8B.

  In FIG. 8B, reference numeral 89 denotes management information of a root directory that is a base point of the directory structure, and has an FE (File Entry) structure. The FE mainly manages position information of accompanying data. The directory FE (Dir-FE) indicated by 89 and 82 and the file FE (File-FE) indicated by 84 and 86 are provided. ).

  File-FE manages position information of a recording area of actual data of a file. For example, File-FE 84 manages position information of the recording area of actual data 85. Note that the File-FE and the actual data need not necessarily be recorded adjacent to each other.

  On the other hand, Dir-FE manages FID (File Identifier Descriptor) position information indicated by 80, 81, and 83. Table 5 is a data table showing the structural standards of FE.

  In Table 5, in the Information Length field, the file size of the file managed by the FE is recorded. In the Allocation Descriptors field, the position information of the recording area of actual data is recorded in the case of File-FE, and the position information of the recording area of FID is recorded in the case of Dir-FE. When the recording area of actual data or FID is divided and recorded in a plurality of areas, the same number of pieces of positional information as the number of divisions is recorded.

  Here, the FID manages the identification information of elements (files and directories) included in the directory and the location information of the File-FE. FIDs are stored in order from the top in a recording area managed by Dir-FE, and one FID corresponds to one element in the directory.

  Table 6 is a data table showing the structural standard of the FID.

  In Table 6, position information of the FE recording area of the corresponding element is recorded in the ICB field, and a file name or directory name is recorded in the File Identifier field. Further, the first FID among the FIDs managed by the Dir-FE is a FID that stores position information of the recording area of the Dir-FE of the parent directory.

  By sequentially referring to these FE and FID, it is possible to grasp all elements under the root directory.

  Most of the location information managed in the above descriptors is expressed in a descriptor called AD (Allocation Descriptor) or a description format equivalent to it. There are three types of AD depending on the information to be stored.

  Table 7 is a data table showing the structure standard of the Short Allocation Descriptor.

  In Table 7, in the Extent Position field, the start position of the recording area information to be stored is recorded by the logical block number LBN in the partition. In the Extent Length field, the length is recorded in bytes.

  On the other hand, Table 8 is a data table showing the structural standard of the Long Allocation Descriptor.

  In Table 8, in the Extent Location field, the start position of the location information is recorded by the partition number in the volume and the logical block number LBN in the partition. In the Extent Length field, the length is recorded in bytes.

[3. Implementation procedure〕
The information recording apparatus 1 according to the present embodiment includes, as actual data (recording target data) management information, recording management information (identification information) indicating whether or not actual data recording processing has been completed, to which the actual data belongs. Store in the file identifier of the file.

  FIG. 2 is a flowchart showing a procedure (write procedure) in which the information recording apparatus 1 records the recording management information in the recording area of the recording medium (disc). The recording operation of the information recording apparatus 1 in each flow is controlled by the recording control unit 2.

  First, the recording control unit 2 issues a command to record actual data corresponding to the file to be recorded (step 21, hereinafter abbreviated as “S21”).

  Next, the recording control unit 2 sets the recording management information of the FID corresponding to the recording file to 1 (S22), and writes the FID updated in S22 on the recording medium (S23).

  Subsequently, the recording control unit 2 records the actual data of the file (S24). When the recording of the actual data is finished, the recording control unit 2 updates the FE based on the recorded area information and writes it to the recording medium (S25).

  When the recording of the actual data and the FE is completed, the recording control unit 2 sets the FID recording management information to 0 (S26).

  Finally, the recording control unit 2 writes the FID updated in S6 onto the recording medium (S27), and completes the actual data recording process (S28).

  FIG. 3 is an explanatory diagram showing a position where the information recording apparatus 1 stores the recording management information in the recording area of the recording medium 31. In the figure, a recording medium 31 includes Dir-FE 32, FID 33/34 managed by Dir-FE 32, File-FE 35 managed by FID 33, and recorded actual data 36 managed by File-FE 35. Is recorded. For convenience, FIG. 3 does not show the FE managed by the FID 34 and the actual data managed by the FE.

  As shown in FIG. 3, the FID 33 has a field structure 37. In this field structure 37, the Implementation Use field has an Entity Identifier structure 38. Further, the Identifier Suffix in the Entity Identifier structure 38 has a structure 39, and has a field called Implementation Use Area for storing mounting information. In the present embodiment, a structure 40 is provided in the Implementation Use Area field, and the recording management information is recorded in the Write Info field. The Reserved field is a spare area.

  Since the record management information may be information indicating whether the file managed by the FID is currently recording actual data, it is a 1-byte variable that takes a binary value of 0 or 1 here. And 0 indicates that the file is not being recorded, and 1 indicates that the file is being recorded. Further, the recording management information may include information indicating that the recording operation of the recording target data is completed and information indicating that the recording operation is started.

  By performing the above processing at the time of actual data recording, even if the data recording processing is interrupted due to interruption of power supply or the like during recording of actual data or FE, at the time of restart For example, it is possible to quickly identify which file interrupted the recording process.

  FIG. 4 shows an example in which the recording control unit 2 of the information recording apparatus 1 is recording when the power is turned off when the data recording process to the recording medium is interrupted due to power supply interruption (power interruption). It is a flowchart which shows the process which specifies the file which has not completed.

  First, the recording control unit 2 issues a power-off confirmation processing command for determining whether recording is interrupted due to power-off (S41).

  Next, the recording control unit 2 loads the FID managed by the root directory FE to check the recording management information for all files under the root directory in the recording medium (S42), and checks the recording management information field. (S43). If 0 is stored in the record management information as a result of the check in S43, the file is identified as having no power interruption during recording, and the next file is checked. Here, if all the files have been checked (S44), it is determined that there is no file in which the data recording process to the recording medium has been interrupted due to power supply interruption (power interruption), and the confirmation process is terminated (SS47). ).

  If there is an unchecked file in S44, the recording control unit 2 loads the FID of the next file (S45) and checks the recording management information.

  On the other hand, if the record management information of any file is 1 in the check of S43, the file can be identified as a file that has been interrupted due to power interruption during recording of actual data or FE (S46). ). That is, the recording control unit 2 can specify a file in which inconsistency occurs between the FE and the actual data.

  It is also preferable that the information recording apparatus 1 deletes the file identified in this way, inconsistent between the FE and the actual data, from the recording medium by the function of the data deleting unit 2c. Alternatively, the information recording apparatus 1 preferably corrects the inconsistent file on the recording medium by the function of the data correction unit 2d.

  By adopting these configurations, it is possible to eliminate inconsistencies that occur in the file, so that the file system or application can avoid accessing the recorded data that has not been recorded, and appropriate file management is performed. Can be realized.

  The information recording apparatus 1 of the present embodiment notifies the user of the presence of the inconsistent file by the function of the notification unit 2e. That is, when the inconsistent file is detected, the information recording apparatus 1 notifies the existence information to the outside such as an application using the file system and a user using the application.

  FIG. 5 is an explanatory diagram showing how the information recording apparatus 1 notifies the user of the inconsistent file detected in the flow shown in FIG. 4 and allows the user to select a process. As shown in the figure, the information recording apparatus 1 is connected to a display 52, realizes the function of the recording control unit 2 by a file system 54 and an application 55, and confirms the contents of a disk (recording medium) 53. .

  First, the recording control unit 2 of the information recording apparatus 1 detects the file in which the inconsistency occurs in the recording medium 53 through the file system 54 and the application 55.

  If an inconsistent file is detected in the recording medium 53, the recording control unit 2 including the file system 54 and the application 55 displays an icon 57 corresponding to the inconsistent file on the display 52. A mark ("!" Mark in FIG. 5) indicating that matching has occurred is displayed. Further, as shown in the message 58, a message prompting deletion is displayed for the file inconsistent, and the determination is left to the user 56.

  By performing such processing, the information recording apparatus 1 can notify the user 56 of the existence of the inconsistent file, and the user 56 cares about the inconsistent file. Access can be avoided.

  FIG. 6 is an explanatory diagram showing a recording area structure on a recording medium recorded by the information recording apparatus 1. The information recording apparatus 1 according to the present invention preferably records the UDF attribute information (file / directory name, etc.) corresponding to the data to be recorded in the File Identifier Descriptor or the Logical Volume Identifier Descriptor.

[4. Supplement)
As described above, in the present embodiment, the implementation procedure of the present invention has been described by taking the case where the information recording apparatus 1 records a file as an example. However, in UDF, a directory also takes the same management method as a file. The description of the embodiment can be similarly applied to the case where the information recording apparatus 1 records directory data.

  In this embodiment, the UDF is described as the logical file system used by the information recording apparatus 1 for the recording medium. However, the present invention is not limited to this, and a general-purpose logical file system other than the UDF is used as the logical file system used for the recording medium. Similarly, the present invention can be applied even when it is adopted.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope shown in the claims. That is, embodiments obtained by combining technical means appropriately modified within the scope of the claims are also included in the technical scope of the present invention.

  As described above, the function of the recording control unit 2 may be realized by causing the CPU 3 to execute the information recording program. Therefore, various functions and various processes of the information recording apparatus of the present embodiment can be realized simply by reading the recording medium on which the information recording program is recorded and executing the program.

  As this recording medium, a program medium such as a memory (not shown) such as a ROM may be used for processing by the microcomputer, or a program reader is provided as an external storage device (not shown). It may be a program medium that can be read by inserting a recording medium therein.

  In any case, the stored program is preferably configured to be accessed and executed by the microprocessor. Furthermore, it is preferable that the program is read out, and the read program is downloaded to a program storage area of the microcomputer and the program is executed. It is assumed that this download program is stored in advance in the main unit.

  The program medium is a recording medium configured to be separable from the main body, a tape system such as a magnetic tape or a cassette tape, a magnetic disk such as a flexible disk or a hard disk, or a disk such as a CD / MO / MD / DVD. Fixed disk system, card system such as IC card (including memory card), or semiconductor memory such as mask ROM, EPROM (Erasable Programmable Read Only Memory), EEPROM (Electrically Erasable Programmable Read Only Memory), flash ROM, etc. In particular, there are recording media that carry programs.

  Further, if the system configuration is capable of connecting to a communication network including the Internet, the recording medium is preferably a recording medium that fluidly carries the program so as to download the program from the communication network.

  Further, when the program is downloaded from the communication network as described above, it is preferable that the download program is stored in the main device in advance or installed from another recording medium.

  The present invention can be widely applied to information recording apparatuses that record data to be recorded and management information thereof on a recording medium.

It is a block diagram which shows the function structure of the information recording device which concerns on one Embodiment of this invention. It is a flowchart which shows the procedure (write procedure) in which an information recording device records recording management information in the recording area of a recording medium (disk). It is explanatory drawing which shows the position where an information recording device stores recording management information in the recording area of a recording medium. It is a flowchart which shows the process which the recording control part of an information recording device specifies the file which is recording at the time of a power failure, and the recording process is not completed. FIG. 5 is an explanatory diagram illustrating a state in which a user is notified of an inconsistent file detected in the flow illustrated in FIG. 4 and the user selects a process. It is explanatory drawing which shows the recording area structure on the recording medium recorded with an information recording device. It is explanatory drawing which shows the method in which the conventional information recording apparatus records new data on a recording medium using a file system, Comprising: (a) is a mode of the data recording area in the middle of the data recording operation | movement with respect to a recording medium. (B) shows the state of the data recording area after completion of the data recording operation of (a). It is explanatory drawing which shows the structure example of the partition area | region in UDF, Comprising: (a) shows the area structure in the recording area of a disk, (b) shows the structure example below the directory structure and the root directory of a data area. ing.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Information recording device 2 Recording control part (recording control means)
2a Identification information recording unit (identification information recording means)
2b Attribute information recording unit (attribute information recording means)
2c Data deletion part (data deletion means)
2d Data correction unit (data correction means)
2e Notification section (notification means)
3 CPU (computer)
53 disc (recording medium)

Claims (13)

An information recording apparatus for recording recording target data and management information of the recording target data on a recording medium,
A recording control means for controlling the recording operation of the information recording apparatus;
The recording control means includes identification information recording means for recording identification information as to whether or not recording processing of the recording target data is completed on the recording medium as management information of the recording target data. Recording device.   2. The information recording apparatus according to claim 1, wherein the identification information includes information indicating that the recording operation of the recording target data is finished.   The information recording apparatus according to claim 1, wherein the identification information includes information indicating that a recording operation of the recording target data is started. The recording control means includes
Based on the file system, to control the recording operation of the information recording device,
4. The information recording apparatus according to claim 1, further comprising attribute information recording means for recording attribute information of the file system corresponding to the recording target data on a recording medium.   5. The information recording apparatus according to claim 4, wherein the attribute information includes a file / directory name to which the recording target data belongs. The file system is UDF,
6. The information recording apparatus according to claim 4, wherein the attribute information recording unit records the attribute information in a File Identifier Descriptor. The file system is UDF,
6. The information recording apparatus according to claim 4, wherein the attribute information recording unit records the attribute information in a Logical Volume Identifier Descriptor. The recording control means includes
2. A data deletion unit that detects the identification information recorded on the recording medium and deletes data on which recording processing has not been completed from the recording medium based on the detection result. 8. The information recording device according to any one of items 7. The recording control means includes
A data correction unit that detects the identification information recorded on the recording medium and corrects data on which recording processing has not been completed on the recording medium based on the detection result. The information recording device according to any one of 1 to 7. The recording control means includes
10. A notification means for detecting the identification information recorded on the recording medium and notifying the outside of the presence of data that has not been recorded based on the detection result. The information recording device according to any one of the above.   An information recording program for causing a computer to realize the recording control means provided in the information recording apparatus according to claim 1.   The computer-readable recording medium which recorded the information recording program of Claim 11. A method of controlling an information recording apparatus for recording recording target data and management information of the recording target data on a recording medium,
A control method for an information recording apparatus, wherein identification information as to whether or not recording processing of the recording target data is completed is recorded on a recording medium as management information of the recording target data.

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