JP2006228272A - Recording program and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a recording medium capable of checking a reading error only in a particular recording medium, and a recording medium. <P>SOLUTION: The recording program causes a computer to function as a recording control means 16 for recording a set of image data, an error checking program and identification information, or recording a set of the image data and the error checking program in a recording medium having the identification information prestored therein. The error checking program causes the computer to function as an identification information reading means for reading the identification information from the recording medium, an error detecting means for detecting a reading error when the read identification information is particular identification information, an error information display means for displaying error information by a display means when the reading error is detected, and a backup means for recording the image data or the backed-up data of the image data in another recording medium. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a recording program and a recording medium for recording data and a program on the recording medium.

  In recent years, various services related to photographic images have been provided. For example, when taking a picture with a film camera, if you bring a negative film that has already been taken to a photo shop such as a minilab or an order store such as a convenience store, the photo shop develops the negative film and then reads the photo image with a scanner etc. A service is provided in which the read image data is written to a recording medium such as a CD-R or DVD-R and provided to the user.

  Also, when taking a picture with a digital camera, if you bring the digital camera or digital camera media to a photo shop such as a minilab, you can use an unmanned terminal (kiosk) or a shop terminal provided in the store to The image data recorded on the medium can also be written on a recording medium such as a CD-R or DVD-R (for the unmanned terminal, see, for example, Patent Document 1 below).

  Also, image data read from a negative film, image data read from a digital camera or media is not simply recorded on a recording medium, but video data displayed as a slide show is generated (encoded) from these image data, Data (hereinafter referred to as home appliance data) that can be played back on home appliances such as DVD players, DVD recorders, HDD recorders, and game machines is generated (authored) based on the moving image data, and the generated data is combined with image data. There is also a service of writing to a recording medium such as a CD-R or DVD-R.

  There is also a service that provides an application for generating home appliance data from the read image data and writing image data or home appliance data to a recording medium. The application is applied to a computer device such as a personal computer at home. By installing, it is possible to write image data read from a digital camera or media at home or generated home appliance data to a recording medium or back up to a hard disk of a computer device without going to a photo shop.

Japanese Patent Laid-Open No. 11-8817 (page 3-4, FIG. 1)

  By using the above service, it is possible to obtain image data read from a negative film, a digital camera, image data read from a medium, etc. on a recording medium, and a photographic image can be obtained by using this recording medium. Although it can be stored as an electronic album, the recording medium is not permanently usable, and when reading image data due to deterioration over time or scratches during handling, etc. May cause read errors.

  Therefore, there is a method in which a predetermined program is installed in a computer device, and a read error of the loaded recording medium is checked using this program. However, in this method, the loaded recording medium is not identified. In order to check reading errors for all recording media, for example, reading errors are also checked for non-target recording media such as music CDs on which music data is recorded, and the operation is complicated. Therefore, problems such as processing delay occur.

  The present invention has been made in view of the above problems, and a main object thereof is a recording program and a recording medium for recording data and programs so that a reading error is checked only on a specific recording medium. Is to provide.

  In order to achieve the above object, the recording program of the present invention provides a computer, image data, a computer, means for reading identification information from a recording medium, and the recording medium when the read identification information is specific identification information. An error check program that functions as a means for detecting a reading error, a means for displaying information indicating that the reading error has been detected on a display means when the reading error is detected, and the identification information, Is set to function as a means for recording on the recording medium.

  Further, the recording program of the present invention detects a reading error of the recording medium when the computer is the image data and the computer is means for reading the identification information from the recording medium, and the identification information read is specific identification information. And the error check program that functions as a means for displaying on the display means information indicating that the read error has been detected when the reading error is detected, and the identification information is recorded in advance. It is made to function as a means for recording on the recorded recording medium.

  In the present invention, the error check program further causes the computer to function as means for recording the image data or backup data of the image data on another recording medium when the reading error is detected. It can be.

  Further, in the present invention, the error check program, when the identification information is configured according to a predetermined rule, or when the identification information matches information described in the check program itself, It can be set as the structure which judges that this identification information is specific identification information.

  Further, the recording medium of the present invention comprises image data and a means for reading identification information from the recording medium, and means for detecting an error in reading the recording medium when the read identification information is specific identification information. When the reading error is detected, at least an error check program that functions as a means for displaying information indicating that the reading error has been detected is displayed on the display means, and the identification information is recorded. is there.

  In the present invention, the identification information may be recorded outside the logical address area of the recording medium.

  As described above, according to the present invention, it is possible to eliminate the inconvenience that a read error check is executed even on a recording medium that is not the target, and there is a reading error on the target recording medium. Appropriate action can be taken when it occurs.

  According to the recording program and the recording medium of the present invention, since the error check is executed only on the recording medium, the inconvenience that the reading error check is executed also on the recording medium that is not the object is solved. In addition, it is possible to appropriately cope with a case where a reading error is detected for the target recording medium.

  The reason is that the image data, the error check program, and the identification information are recorded as a set on the recording medium, and the image data and the error check program are set on the recording medium on which the identification information is recorded in advance. When the recording medium is loaded into a computer device or the like, the identification information is read from the recording medium, and when the specific identification information is detected, the reading error of the recording medium is detected and the reading error is detected. In this case, error information is displayed on the display means, and image data or backup data of the image data is recorded on another recording medium.

  In a preferred embodiment of the recording program according to the present invention, the computer records the image data, the error check program and the identification information on a recording medium as a set, or sets the image data and the error check program as a set. The error check program causes the computer to execute identification information reading means for reading the identification information from the recording medium, and the read identification information is specific. In the case of identification information, an error detection means for detecting a reading error of the recording medium, an error information display means for displaying information indicating that a reading error has been detected on the display means when a reading error is detected, a reading error Is detected, the image data or the image data To function as a backup means which is recorded the backup data to another recording medium. Accordingly, it is possible to perform a read error check only for the recording medium, and it is possible to appropriately cope with a read error.

  In order to describe the above embodiment in detail, a recording program and a recording medium according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a diagram schematically illustrating a configuration of a recording apparatus according to an embodiment of the present invention, and FIGS. 2 to 5 are diagrams schematically illustrating other configurations of the recording apparatus. FIG. 6 is a block diagram showing means of the recording apparatus, and FIG. 7 is a block diagram showing means functioning by the error check program. FIG. 8 is a flowchart showing a procedure for creating a recording medium according to this embodiment, and FIG. 9 is a flowchart showing an error check procedure according to this embodiment. 10 is a diagram showing a data recording structure in the recording medium, FIG. 11 is a diagram showing a recording area of image data in the recording medium, and FIG. 12 is a schematic diagram showing the structure of the recording medium (CD-R). FIG. FIG. 13 is a diagram illustrating a configuration example of a screen displayed on the display unit.

  As shown in FIG. 1, the recording apparatus 1 of the present embodiment is a recording medium (hereinafter referred to as a medium 8) such as a smart media, a compact flash (registered trademark), a memory stick (registered trademark), an SD memory card, or a multimedia card. .) For connecting a media loading unit 2 for loading and a photographing device such as a digital camera 7 (including both a digital still camera and a digital movie camera) and a mobile phone 7a with a camera by wire, wireless, infrared, or the like. Device connection unit 3, network connection unit connected to server 10 via communication network 11 such as the Internet, CD-R / RW, DVD ± R / RW, DVD-RAM, HD-DVD, Blu-ray disc, etc. A recording medium loading unit 4 for loading the recording medium 9 and buttons, a keyboard, a mouse, etc. Work unit 6 and LCD, and a display unit 5 such as a CRT.

  Also, the main means provided in the recording apparatus 1 is shown in a block diagram as shown in FIG. 6, and image data (still image data, moving image data, moving image data, Data including image information is collectively referred to as image data.) Data input means 12 for inputting) and playback on home appliances such as a DVD player, DVD recorder, HDD recorder, and game machine based on the input image data Data generation means 13 for performing processing such as generation of possible home appliance data or generation of reduced image data such as thumbnail image data or screen nail image data, and identification information generation for generating identification information of the recording medium 9 Means 14, error check program generation means 15 for generating an error check program that operates based on the identification information, Recording control means 16 for recording the image data, the error check program and the identification information as a set on the recording medium 9, or for recording the image data and the error check program as a set on the recording medium 9 on which the identification information is recorded in advance. A display unit 5, an operation unit 6, and a storage unit 17 such as an HDD for storing backup data of image data recorded on the recording medium 9.

  Each of the above units may be configured as hardware in the recording apparatus 1, but the computer is configured as a recording program that causes at least the recording control unit 16 to function, and the recording program is installed in the recording apparatus 1. It may be configured to execute. 1 shows a computer device such as a personal computer as the recording apparatus 1, the recording apparatus 1 may take any form. For example, a dedicated set-top box as shown in FIG. As shown in FIG. 4, a portable writer, a DVD recorder or an HDD recorder having an arithmetic processing function as shown in FIG. 4, or a terminal equipped with a hard disk as shown in FIG. 5 reads and writes image data. A portable device that can be separated from the main body or a car navigation device having an arithmetic processing function can be used.

  Further, when the means functioning by the error check program is shown in a block diagram as shown in FIG. 7, the identification information reading means 18 for reading the identification information from the recording medium 9 and the read identification information are specific identification information Error detection means 19 for detecting a reading error of the recording medium 9 and error information display means for displaying an error notification screen indicating that a reading error has been detected on the display means 5 when a reading error is detected. 20 and backup means 21 for recording image data or backup data of the image data on a new recording medium when a reading error is detected instead of or in addition to the error information display means 20 And.

  Next, a procedure for recording image data, an error check program, and, if necessary, identification information as a set on the recording medium 9 using the recording apparatus 1 having the above configuration will be described with reference to the flowchart of FIG. .

  First, in step S101, the medium 8 is loaded into the medium loading unit 2 of the recording apparatus 1, or the digital camera 7 and the camera-equipped mobile phone 7a are connected to the device connection unit 3, and in step S102, the digital camera 7 and the medium 8 are connected. The image data recorded on the is read. Here, the image data to be read is not limited to the image data obtained by photographing with the digital camera 7, but the image data obtained by scanning a negative film or a photo print, or the moving image data obtained from a video tape recorder or the like. Still image data obtained by capturing a moving image may be used, and the reading destination may be a recording medium such as a CD-R or DVD-R or a server 10 connected via the communication network 11. Good.

  Next, in step S103, video data is generated (encoded) based on the read image data as necessary, and data for home appliances in a format that can be played back on the home appliance based on the generated video data ( For example, video-CD format data is generated when the moving image data is in MPEG1 format, and DVD-Video format data is generated when the moving image data is MPEG1 or MPEG2. Further, reduced image data such as thumbnail image data or screen nail image data obtained by reducing the data size of the read image data is created as necessary.

  Next, when the recording medium 9 is loaded into the recording medium loading unit 4 in step S104, the identification information generating unit 14 generates identification information for identifying the recording medium 9 in accordance with a predetermined rule in step S105. To do. Although the above rules are not particularly limited, it is preferable to have a unique configuration so that the loaded recording medium 9 can be reliably distinguished from other recording media. For example, as in the folder naming rule described later, YYMDyyyXXXXXXAAB (YYMD: Number that specifies the date of writing, yyy: Sequential number for each day, XXXXXX: Random ID number, AA: Manufacturer code (00 to ZZ), B: Product category of software and equipment (0 to Z) ) Etc.

  The above step is a process in the case where identification information is not recorded on the recording medium 9 loaded in the recording medium loading unit 4. If the identification information is recorded on the recording medium 9 in advance, identification information generation is performed. There is no need to newly generate identification information by means 14. The configuration of the identification information recorded in advance is not particularly limited, but a code corresponding to the manufacturer of the recording medium 9 (manufacturer code, commonly known as M code) and a code corresponding to the standard of the recording medium 9 (type code, commonly referred to as common code). T code). The identification information is provided for operating the error check program on an appropriate recording medium. If the contents of the identification information are easily known, the identification information itself is copied. At least a part of the information cannot be recorded by the OS of the computer, specifically information on the program memory area and information by guide groove modulation (ATIP: Absolute Time In Pre-groove) given at the time of CD-R molding Etc. are preferable.

  Here, the structure of a general recording medium 9 will be described with reference to FIG. 12. The CD-R is formed on a polycarbonate substrate 100 with an organic dye layer 101 such as cyanine, phthalocyanine, or azo and a reflective layer such as silver. 102 and a protective layer 103 are laminated to form a pit by applying laser light of a predetermined power to the organic dye layer 101 to decompose the dye and deform the substrate, thereby recording information. However, since the optimum value of the laser power differs depending on the laser head type that irradiates the laser light and the type of the organic dye layer 101 to be used, the CD-R type or The drive side needs to recognize the recommended value of the laser recording power. Therefore, information such as the disc application code and recommended laser recording power is written as guide groove modulation (ATIP) information at the manufacturing stage of the recording medium, and the information is read by the drive firmware. The laser power is adjusted by control. Since such guide groove modulation (ATIP) can only be created at the time of manufacture, copying at the user level can be prevented. Further, lead-in start time, maximum lead-out startable time, etc., which are guide groove modulation (ATIP) other than the above, can be used as identification information by appropriately setting.

  Next, in step S106, the error check program generation unit 15 refers to the identification information generated in step S105 or the identification information recorded in advance in the recording medium 9 in the program that causes the computer to function as each unit illustrated in FIG. The error check program is operated only on the recording medium 9.

  In the above method, the recording medium 9 is identified based on whether the identification information recorded on the recording medium 9 matches the identification information described in the error check program itself (that is, only the recording medium 9 is identified). ) This is a method for enabling the recording medium 9 to identify the recording medium 9 based on whether the identification information is generated according to a predetermined rule (that is, to identify a specific type of recording medium 9). You can also. In this case, the error check program only needs to have a function of discriminating a predetermined rule, and it is necessary to describe identification information corresponding to the recording medium 9 loaded in the recording medium loading unit 4 in the error check program itself. Therefore, an error check program having a function of discriminating a predetermined rule may be stored in the storage unit 17 and the error check program may be read from the storage unit 17.

  Next, various data and programs are recorded in the recording medium 9. However, since the recording area in which data can be read is limited in the home appliance, first, in step S107, the recording control unit 16 generates as necessary. After recording the data for home appliances outside the logical address area of the recording medium 9, the session is closed as necessary in step S108. The logical address area is an area in which user data (program) is recorded, a program memory area in which user data arrangement information is recorded, an information area such as a lead-in / TOC area and a lead-out area, a disc Is an area that does not include the guide groove modulation (ATIP) information area in which the application code, recommended laser recording power value, and other information are recorded. The area outside the logical address area is an area other than the logical address area. Thus, this is an area located on the inner circumference side of the logical address area.

  Next, in step S109, the recording control unit 16 stores the image data read in step S102 and the reduced image data generated in step S103 as necessary, and the error check program generated in step S106 (or stored in the storage unit 17). Error check program) and the identification information generated in step S105 are recorded as a set in the area outside the home appliance data. At this time, if the identification information is recorded in advance on the recording medium 9, it is not necessary to record the identification information generated in step S105, and the image data and the error check program may be recorded as a set.

  For example, as shown in FIG. 11, the recording medium 9 created by the above procedure records various data, and the data for home appliances is stored in the inner area of the logical address area of the disk type recording medium 9 as necessary. Is recorded, and computer data such as image data, reduced image data, and error check program is recorded in the outer peripheral area of the home appliance data, and is outside the innermost logical address area or the outer periphery of the home appliance data. Identification information is recorded in the side area (outside the logical address area in the figure).

  Further, the directory structure of the recording medium 9 is as shown in FIG. 10A, in which image data and reduced image data in a folder (PS_Roll folder) indicating the storage location of the image data, and management information of the recording medium are described. Computer with management data (index.pvm), error check program in APPL folder, slide show program to display image data as slide show, slide show setting file, data with identification information (identification.txt), etc. Device data is configured. Although the directory structure and file name are arbitrary, in order to facilitate the management of the image data, the data for each medium 8, each device, and each film in the lower hierarchy of the folder (PS_Roll) indicating the storage location of the image data Folder indicating the storage location (ROYYMMDDyyy_XXXXXXAABxxx, YYMMDD: Number specifying the date of writing, yyy: Sequential number for each day, XXXXXX: Random ID number, AA: Manufacturer code (00 to ZZ), B: Software, device Create product categories (0 to Z), xxx: sequential number, etc., and rename each data to CCYYMMDDxxxxxx (CC: type of data, YYMMDD: number that specifies the date of writing, xxxxxx: sequential number) May be.

  In addition, the directory structure of the recording medium 9 when the data in the Video-CD format is generated as the home appliance data is as shown in FIG. 10A. In addition to the computer device data, the directory structure in the “VCD” folder is as follows. File that associates the image data as Video-CD format data, image data to be displayed on the TV screen in the “SEGMENT” folder, moving image data in the “MPEGAV” folder, and still image data on the TV screen in the “DAT” folder When an application for display or the like is recorded and data in the DVD-Video format is generated, as shown in FIG. 10B, VIDEO_TS.IFO in which the chapter position information is described in the “VIDEO_TS” folder Video money consisting of VIDEO_TS.BUP as the backup file and VIDEO_TS.VOB as the title selection menu (VMG), VTS _ ** _ 0.IFO in which chapter position information is described, VTS _ ** _ 0.BUP that is the backup file, VTS _ ** _ *. VOB that is the video data of each VTS title, etc. A video title set (VTS) composed of is recorded.

  Next, a procedure for checking a reading error of the recording medium 9 will be described with reference to a flowchart of FIG. In the following description, the case where the recording medium 9 is loaded into the recording apparatus 1 will be described. However, since the error check program is recorded on the recording medium 9 itself, the device loaded with the recording medium 9 is at least the recording medium loaded. Any computer device including a display unit and display means may be used.

  First, in step S201, when the recording medium 9 created in the above-described procedure is loaded into the recording medium loading unit 4 of the recording apparatus 1, the error check program written in the recording medium 9 is started in step S202. Here, the error check program is automatically activated when the recording medium 9 is loaded. However, when the recording medium 9 is loaded, the menu program is activated and when the error check is selected from the menu, the error check program is activated. The error check program may be started by the user himself / herself.

  Next, in step S203, the error check program causes the computer to function as the identification information reading unit 18, and the identification information reading unit 18 uses a predetermined area or predetermined data (for example, FIG. 10A) of the recording medium 9. identification information is read from identification.txt), and the read identification information matches the identification information described in the error check program itself in step S106 described above, or the read identification information is configured in accordance with a predetermined rule. Whether the read identification information is specific identification information or not is determined based on whether the identification information is read.

  If it is determined that the identification information is specific identification information, in step S204, the error check program causes the computer to function as the error detection unit 19, and the error detection unit 19 detects a reading error of the recording medium 9. Then, it is determined whether the image data recorded on the recording medium 9 can be read normally. Note that a situation in which a reading error occurs refers to a case where predetermined image data cannot be read due to a scratch on the recording medium 9, a case where a retry is required to read predetermined image data due to deterioration of the recording medium 9, etc. Can be read but the image cannot be reproduced, but includes at least an arbitrary situation in which some error occurs when reading the image data.

  Next, if a reading error is detected in step S205, in step S206, the error check program causes the computer to function as the error information display means 20, and the error information display means 20 is, for example, shown in FIG. An error notification screen 22 as shown in FIG. The error notification screen 22 displays a message indicating that a reading error has occurred during reading of image data, a message for prompting backup of image data, and the like.

  The error notification screen 22 is not limited to the configuration shown in FIG. 13A, and may display information other than the above message. For example, as shown in FIG. 13B, a reading error has occurred. The file name for specifying the image data, the specific content of the reading error, and the like can also be displayed. By displaying the detailed information of the reading error, the user can determine the state of the recording medium 9, and the backup Can be used to determine whether or not to execute.

  Next, in step S207, the user determines whether the image data is backed up to another recording medium 9, and if so, for example, presses the “Backup Execution” button on the error notification screen 22 to execute the backup. Although a button for executing backup is provided on the error notification screen 22 here, backup may be automatically executed after the error notification screen 22 is displayed, or the error notification screen 22 may be executed. Instead of displaying, backup may be automatically executed when a reading error is detected.

  In step S208, the error check program causes the computer to function as the backup unit 21, and the backup unit 21 temporarily stores the image data read from the recording medium 9 in the storage unit 17 of the recording apparatus 1. At that time, if the image data in which the reading error has occurred can be read by retrying, the image data is read from the recording medium 9. If the image data cannot be read even by retrying, the image data is backed up in the storage means 17 or the like. If it is backed up, the image data is read from the storage means 17.

  Next, when a new recording medium 9 is loaded in the recording medium loading unit 4 in step S209, the backup unit 21 backs up the image data temporarily stored in the storage unit 17 to the new recording medium 9 in step S210. At that time, the backup unit 21 may record an error check program and identification information on a new recording medium 9 as necessary. When the recording apparatus 1 includes a plurality of recording medium loading units 4, the image data may be directly backed up to a new recording medium 9 without temporarily storing the image data in the storage unit 17. .

  On the other hand, if the identification information read in step S203 is not specific identification information, if no reading error is detected in step S205, or if no backup instruction is given in step S207, the user records in step S211. The display unit 5 displays image data recorded on the medium 9, edits the image data, displays a slide show, and creates a photo print.

  As described above, in this embodiment, the recording control means 16 records image data, an error check program, and identification information as necessary in the recording medium 9 as a set, and sets the recording medium 9 in a computer device or the like. Then, an error check program is started, the identification information is read from the recording medium 9, a reading error is detected when the read identification information is specific identification information, and an error notification screen 22 is displayed when a reading error is detected. Since control such as display or backup of image data to another recording medium is performed, it is possible to execute a read error check only on a specific recording medium 9, and when a reading error occurs Can respond appropriately.

  In each of the above embodiments, a recording medium for recording image data has been described. However, the present invention is not limited to the above embodiment, and other types of data other than image data such as music data are recorded. The same can be applied to a recording medium.

1 is an external view illustrating a configuration of a recording apparatus according to an embodiment of the present invention. It is an external view which shows the other structure of the recording device based on one Example of this invention. It is an external view which shows the other structure of the recording device based on one Example of this invention. It is an external view which shows the other structure of the recording device based on one Example of this invention. It is an external view which shows the other structure of the recording device based on one Example of this invention. It is a block diagram which shows the means of the recording device based on one Example of this invention. It is a block diagram which shows the means which functions by the error check program based on one Example of this invention. It is a flowchart figure which shows the preparation procedure of the recording medium using the recording device based on one Example of this invention. It is a flowchart figure which shows the error check procedure using the recording device based on one Example of this invention. It is a figure which shows the recording structure of the image data in the recording medium of one Example of this invention. It is a figure which shows the recording area of the image data in the recording medium of one Example of this invention. It is a figure which shows typically the structure of a recording medium (CD-R). It is a figure which shows the structural example of the error notification screen displayed on the display means of the recording device based on one Example of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Recording device 2 Media loading part 3 Device connection part 4 Recording medium loading part 5 Display part 6 Operation part 7 Digital camera 7a Mobile phone with a camera 8 Media 9 Recording medium 10 Server 11 Communication network 12 Data input means 13 Data generation means 14 Identification Information identification means 15 Error check program generation means 16 Recording control means 17 Storage means 18 Identification information check means 19 Error check means 20 Error notification screen display means 21 Backup means 22 Error notification screen

Claims (8)

Computer
Image data,
Means for reading identification information from a recording medium, means for detecting a reading error of the recording medium when the read identification information is specific identification information, and reading error when the reading error is detected An error check program that functions as a means for displaying information indicating that the error has been detected on the display means,
The identification information;
A recording program that functions as a means for recording a program on the recording medium. Computer
Image data,
Means for reading identification information from a recording medium, means for detecting a reading error of the recording medium when the read identification information is specific identification information, and reading error when the reading error is detected An error check program that functions as a means for displaying information indicating that the error has been detected on the display means,
A recording program that functions as means for recording the identification information on the recording medium in which the identification information is recorded in advance. The error check program further includes:
3. The recording according to claim 1, wherein when the reading error is detected, the computer is caused to function as means for recording the image data or backup data of the image data on another recording medium. program. The error check program is
When the identification information is configured according to a predetermined rule, or when the identification information matches information described in the check program itself, it is determined that the identification information is specific identification information. The recording program according to any one of claims 1 to 3, wherein: Image data,
Means for reading identification information from a recording medium, means for detecting a reading error of the recording medium when the read identification information is specific identification information, and reading error when the reading error is detected An error check program that functions as a means for displaying information indicating that the error has been detected on the display means,
The identification information;
A recording medium on which is recorded at least.   6. The recording medium according to claim 5, wherein the identification information is recorded outside a logical address area of the recording medium. The error check program further includes:
7. The recording according to claim 5, wherein the computer functions as means for recording the image data or backup data of the image data on another recording medium when the reading error is detected. Medium. The error check program is
When the identification information is configured according to a predetermined rule, or when the identification information matches information described in the check program itself, it is determined that the identification information is specific identification information. The recording medium according to claim 5, wherein the recording medium is a recording medium.

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