JP2006228318A - Data reproducing method and data editing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a data reproducing method capable of preventing the same content from being continuously reproduced unless a user desires, and to provide a data editing method capable of reducing the use capacity of a large capacity data storage device. <P>SOLUTION: When a recording and reproducing apparatus 100 performs the random reproduction or shuffle reproduction of contents recorded in a plurality of disk type recording media 150 or a mass data recording and reproducing device mounted thereon, the apparatus prevents one and the same content from being reproduced by determining whether or not a selected content has already been reproduced, and thereby, the data editing method can be provided which prevents the continuous reproduction of one and the same content unless the user desires. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a data reproduction method and a data editing method in a device capable of storing a plurality of recording or reproduction media or a large-capacity data storage device.

  Conventionally, in a device capable of storing a plurality of recording or playback media or a large-capacity data storage device, the same content is stored in a plurality of media, or there are a plurality of the same content in the large-capacity data storage device. The same content may be reproduced continuously. Further, in a large-capacity data storage device, when a plurality of identical contents exist in the large-capacity data storage device, the capacity of the storage device is consumed more than necessary.

  Although there is a technology for reproducing content items according to user preferences based on reaction information given by the user, this technology does not avoid continuous reproduction of the same content (see, for example, Patent Document 1).

Further, the content once recorded on the large-capacity storage medium is not deleted from the large-capacity storage medium unless the user himself / herself performs the act of deleting the content. It is to be noted that the information recording medium has reproduced information that can identify information portions that have been reproduced in the past among recorded information, and archive information that can identify information portions that should be stored among recorded information. There is also a technology for recording digital information, but this is based on the premise that the information has been reproduced in the past, and this technology does not enable the deletion of contents in a large-capacity data storage device (for example, patents). Reference 2).
JP 2004-26150 A JP 2002-190183 A

  In the above-described prior art, when the same content is stored in a plurality of media, or when the same content exists in a large-capacity data storage device, when shuffle playback is performed, continuous playback of the same content is performed. There was a problem that could be done. Further, when there are a plurality of identical contents in the large-capacity data storage device, there is a problem that the capacity of the storage device is used redundantly due to the existence of the same contents.

  The present invention solves the above-described problems, and a data reproduction method for preventing the same content from being continuously reproduced unless the user desires, and a use capacity of a large-capacity data storage device are reduced. An object is to provide a data editing method.

  In order to achieve the above object, a data playback method according to claim 1 of the present invention is a random playback or shuffle playback of content recorded on a plurality of disc type recording media or a large capacity recording / playback device mounted on a recording / playback device. A method for reproducing data, the step of selecting the content to be reproduced, the step of determining whether the reproduced content has the same content, the content is reproduced if there is no identical content, and the same content If there is, there is a step of returning to the step of selecting the content.

  3. The data reproduction method according to claim 2, wherein the content recorded on the plurality of disc-type recording media or the large-capacity recording / reproduction device mounted on the recording / reproduction device is randomly reproduced or shuffled, and the content to be reproduced is reproduced. , Selecting whether to determine whether or not there is the same content, and determining whether or not the reproduced content has the same content when the determination is made And a step of playing back the content when there is no determination and when there is no identical content, and returning to the step of selecting the content when there is the same content.

  The data reproduction method according to claim 3 is the data reproduction method according to claim 1 or 2, wherein up to how many songs have been reproduced in the past when determining whether or not there is the same content. The method includes a step of selecting the number of effective histories for determining whether to perform determination processing for content, and determining whether there is the same content within the number of effective histories.

  The data reproduction method according to claim 4 is the data reproduction method according to any one of claims 1, 2, and 3, and the audio included in the content when determining whether or not there is the same content. Alternatively, the video data is compared to determine whether there is the same content.

  According to a fifth aspect of the present invention, in the data reproduction method according to any one of the first, second, and third aspects, the tag included in the content when determining whether or not there is the same content The information is compared to determine whether there is the same content.

  The data reproduction method according to claim 6 is the data reproduction method according to any one of claims 1, 2, and 3, wherein a plurality of contents included in the content are determined when determining whether there is the same content. It is characterized by determining whether there is the same content by comparing arbitrary tag information or all tag information among the tag information.

  The data reproduction method according to claim 7 is the data reproduction method according to any one of claims 1, 2, and 3, and the audio included in the content when determining whether or not there is the same content Alternatively, the video data and the tag information are combined and compared to determine whether there is the same content.

  The data reproduction method according to claim 8 is the data reproduction method according to any one of claims 1, 2, and 3, wherein a tag included in the content is determined when it is determined whether or not there is the same content. It is characterized in that it is judged whether there is the same content by combining information and audio or video data compression methods in combination.

  The data reproduction method according to claim 9 is the data reproduction method according to any one of claims 1, 2, or 3, wherein a tag included in the content is determined when it is determined whether or not there is the same content. The information and the compression rate of the audio or video data are combined and compared to determine whether there is the same content.

  A data reproduction method according to claim 10 is a tag included in content when determining whether or not there is the same content in the data reproduction method according to claim 1, 2, or 3. The compression method of information, audio or video data, and the compression rate of audio or video data are combined and compared to determine whether there is the same content.

  12. The data editing method according to claim 11, wherein when editing the content recorded in the large-capacity recording / reproducing apparatus, it is determined whether or not the same content is recorded in the content recorded in the large-capacity recording / reproducing apparatus. And a step of deleting any content when the same content is recorded.

  13. A data editing method according to claim 12, wherein a step of selecting whether or not there is the same content when editing the content recorded in the large-capacity recording / reproducing apparatus, and selection when the determination is made. And a step of determining whether or not the reproduced content has the same content, and a step of deleting any content when the same content is recorded.

  A data editing method according to a thirteenth aspect is the data editing method according to the eleventh or twelfth aspect, wherein the deletion of the content is arbitrarily selected and performed automatically or manually.

  The data editing method according to claim 14 is included in the data editing method according to any one of claims 11, 12, and 13 when determining whether or not the same content is recorded. It is characterized in that it is determined whether or not the same content is recorded by comparing audio or video data.

  The data editing method according to claim 15 is included in the content editing method in the data editing method according to any one of claims 11, 12, or 13 when determining whether or not the same content is recorded. The tag information is compared to determine whether or not the same content is recorded.

  The data editing method according to claim 16 is included in the data editing method according to any of claims 11, 12, or 13 when determining whether or not the same content is recorded. It is characterized in that it is determined whether or not the same content is recorded by comparing arbitrary tag information or all tag information among a plurality of tag information.

  The data editing method according to claim 17 is included in the data editing method according to any of claims 11, 12, or 13 when determining whether or not the same content is recorded. The audio or video data to be recorded and the tag information are combined and compared to determine whether or not the same content is recorded.

  The data editing method according to claim 18 is included in the data editing method according to any one of claims 11, 12, and 13 when determining whether or not the same content is recorded. The tag information and the audio or video data compression method are combined and compared to determine whether or not the same content is recorded.

  The data editing method according to claim 19 is included in the data editing method according to any one of claims 11, 12, and 13 when determining whether or not the same content is recorded. The tag information and the compression rate of audio or video data are combined and compared to determine whether or not the same content is recorded.

  The data editing method according to claim 20 is included in the data editing method according to any of claims 11, 12, or 13 when determining whether or not the same content is recorded. The tag information, the audio or video data compression method, and the audio or video data compression rate are combined and compared to determine whether or not the same content is recorded.

  As described above, it is possible to provide a data reproduction method for preventing the same content from being continuously reproduced unless the user desires, and a data editing method for reducing the use capacity of the large-capacity data storage device. .

  When random playback or shuffle playback of content recorded on a plurality of disc-type recording media or large-capacity recording / playback devices installed in the recording / playback device, it is determined whether the selected content is played back content. By not reproducing the same content, it is possible to provide a data reproduction method that prevents the same content from being continuously reproduced unless the user desires.

  Further, when editing content recorded on a large-capacity recording / playback device, it is possible to use a large-capacity data storage device by determining whether the same content is recorded and deleting one of the same content. A data editing method for reducing the capacity can be provided.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
Hereinafter, the data reproduction method according to the first embodiment will be described with reference to FIGS. 1, 2, 3, 4, 4, 5, and 7. FIG.

  FIG. 1 is a configuration diagram of a recording / reproducing apparatus capable of mounting a plurality of discs according to Embodiment 1 of the present invention, and FIG. 2 illustrates a method for determining the same content in a data area according to Embodiment 1 of the present invention. FIG. 3 is a diagram for explaining a method for determining the same content in the tag information area according to the first embodiment of the present invention, and FIG. 4 is a flowchart for explaining a data reproduction method according to the first embodiment of the present invention. FIG. 5 is a diagram illustrating a tag information selection screen according to the first embodiment of the present invention, FIG. 6 is a diagram illustrating an effective history number selection screen according to the first embodiment of the present invention, and FIG. 7 is an implementation of the present invention. It is a figure for demonstrating the specific example of the data reproduction method in the form 1. FIG.

  In FIG. 1, reference numeral 100 denotes a recording / reproducing apparatus, which includes n disk-type storage medium transport apparatuses 110, disk-type storage medium transport apparatuses 120, and disk-type storage medium transports that mount a disk-type recording medium and transport the recording medium. The apparatus 130, the disk-type storage medium transport apparatus 140, the disk-type storage medium recording / reproducing apparatus 160, and the transport control apparatus 170 that controls the disk-type recording medium transport apparatus. Reference numeral 150 denotes a disk-type recording medium, which is mounted on the recording / reproducing apparatus 100 capable of mounting a plurality of disks.

The disc-type storage medium recording / reproducing apparatus 160 determines whether there is the same content recorded on each disc-type recording medium, and controls data reproduction.
Next, a method for detecting the same content will be described.

  FIG. 2A shows the data structure of content data in the disc type recording medium. The content data 500 has a data area 510 that stores video or audio data and a tag information area 520 that stores tag information.

FIG. 2B illustrates a method of determining the same content based on video or audio data stored in the data area 510 in the content data 500.
In FIG. 2B, it is assumed that the same content is obtained when an arbitrary number of data from an arbitrary preset address match among the data recorded in the data area 510. As an example, when it is determined that the contents match by matching 5 bytes of data from the head address, the data from the head address of the data area 510 in the content data A is 0x23, 0xD5, as shown in the figure. 0x64, 0x8C, 0x3A and the data from the top address of the data area 510 in the content data B are 0x23, 0xD5, 0x64, 0x8C, 0x3A, and the 5 bytes of data from the top address match. The two contents are determined to be the same contents.

  FIG. 3A shows the data structure of content data in the disc type recording medium. The content data 500 has a data area 510 that stores video or audio data and a tag information area 520 that stores tag information. In the tag information area 520, a song name, artist name, album name, etc. are recorded as attached data in the content.

  FIG. 3B shows a method for determining the same content by the tag information area 520 in the content data 500. Of the data recorded in the tag information area 520, it is assumed that the same content is obtained when an arbitrary number of pieces of information coincide with an arbitrary number of pieces of information. As an example, the song name data in the tag information area 520 in the content C is 0x03, 0xAA, 0x7F, 0x19 (= “fate”), the artist name data is 0xC5, 0xBD, 0x62, 0x31, 0x58 (= “Beethoven”). In addition, the song name data in the tag information area 520 in the content data D is 0x03, 0xAA, 0x7F, 0x19 (= “fate”), the artist name is 0xC5, 0xBD, 0x62, 0x31, 0x58 (= “Beethoven”) Assuming that there is a match, the two pieces of information in the tag information area match, so it is determined that the two pieces of content are the same. Further, the method of determining the same content is not only determined by the tag information area alone, but can also be determined to be the same content by combining the compression method or the compression rate, or by combining both the compression method and the compression rate. It shall be possible.

Next, an example of a control flow of the data reproduction method will be described.
A control flowchart of the data reproduction method is shown in FIG. When the data reproduction method of the present invention is not used, as shown in FIG. 4A, as in the prior art, only the process 600 for selecting music for random or shuffle reproduction and the process 601 for reproducing the selected content are performed. However, when using the data reproduction method of the present invention, as shown in FIG. 4 (b), the process of selecting which information is used to determine the same content before the process 600 and the past reproduction are performed. In addition, a process 602 for selecting the number of valid histories of how many pieces of content are to be determined is added, and a process 602 for selecting the same content determination method is added. In addition, an operation control determination process 603 for selecting whether or not to perform the same content determination operation is added between the processes 600 and 601, and if the operation is valid, the song titles in the reproduced content within the selected effective history number A process 604 for determining whether or not there is a content with the same information, and a process 605 for determining whether or not there is a content with the same artist name information among the contents within the number of valid histories are added. If it is a content, it is determined that the content is the same, and the process returns to the process 600. If it is determined that the content is not the same, a reproduction process is executed. Here, as an example, the same content is determined based on the song name information and artist name information. However, in the process 602, other tag information, audio or video data, a compression method, and a compression rate are selected in any combination. If it is, a process for determining these is added between the process 603 and the process 601.

  Here, an operation control determination process, a process for determining which information is used for the same content, and a process for determining the number of music pieces before the newly selected content (the process 602). ) Can be arbitrarily selected by the user.

Examples of screen display at this time are shown in FIGS.
FIG. 5 shows a screen 800 for selecting information in the tag information area, which is an example of a screen for selecting which information in the tag information area is used to determine the same content. Items above the dotted line are items that can always be selected regardless of genre (items that are always displayed), and items below the dotted line are items that can be selected by genre (items that do not need to be displayed) It is. Here, a screen display example when the genre is classic is shown. If the same content cannot be determined based on the tag information, such as when there is no information in the tag information area, the same content is determined using the information in the data information area, so the display of FIG. 5 may not be performed. Shall. FIG. 6 is a screen display example in which the user inputs the number of songs to be searched in random or shuffle playback, and is an input screen 810 for the number of effective histories.

  For example, like the recording / reproducing apparatus 820 in FIG. 7, the album “Album” 830 and the “Best Album” 840 with the artist name “Artist” are included in the disc 1 and the disc n−1, and are in the two albums. It is assumed that the content “Content 8” is the same content. Further, the determination of the same content is determined based on the song name information and artist information in the tag information area as shown in FIG. 5, and the number of effective histories is randomly or shuffled as 10 contents as shown in FIG. At this time, when “Content 8” in the disc 1 is reproduced first and “Content 8” of the disc n−1 is selected within 10 contents, “Content 8” of the disc n−1 is not reproduced, Processing for selecting the next content is performed.

  As described above, in the data playback method in a recording / playback apparatus capable of mounting a plurality of disc-type recording media, when performing random or shuffle playback, it is confirmed that the tag information area or arbitrary data set in advance in the data area matches. By determining whether or not the content is the same, and by controlling so as not to play the same content as the content that has already been played, the same content is not continuously played unless the user desires. Can be.

(Embodiment 2)
Hereinafter, a data editing method according to the second embodiment will be described with reference to FIGS. 8, 9, 10, 11, 12, and 13.

  FIG. 8 is a configuration diagram of a large-capacity recording / reproducing apparatus divided into a plurality of folders according to the second embodiment of the present invention, FIG. 9 is a flowchart for explaining a data editing method according to the second embodiment of the present invention, and FIG. FIG. 11 is a diagram illustrating a content list screen in the second embodiment of the present invention, FIG. 11 is a diagram illustrating an automatic erasure / manual erasure selection screen in the second embodiment of the present invention, and FIG. 12 is a second embodiment of the present invention. FIG. 13 is a diagram illustrating a screen displayed when automatic erasure is selected in FIG. 13, and FIG. 13 is a diagram illustrating a screen displayed when manual erasure is selected in the second embodiment of the present invention.

  In FIG. 8, reference numeral 200 denotes a large-capacity recording / reproducing apparatus, and 210, 220, 230, and 240 denote folders in the large-capacity recording / reproducing medium. The large-capacity recording / reproducing apparatus 200 has n folders.

  The method for judging that the contents are the same is the same as that of the first embodiment except that n folders are used instead of n disk recording media, and the description is omitted here. To do. The data editing method according to the second embodiment includes a step of deleting one content when it is determined that the content is the same.

Next, the control flow of the data editing method will be described.
A control flowchart of the data editing method is shown in FIG. When the data editing method of the present invention is not used, only the processing 700 for storing content in the recording medium and the processing 701 for storing the content in the storage medium as they are, as in the prior art, When the editing method is used, a process 702 for selecting which information is used to determine the same content and an operation control determination process 703 for selecting whether to perform the same content determination operation are added between the processes 700 and 701. If the operation is valid, a process 704 for determining whether or not there is a content with the same song name information in the content in the same recording medium, a content with the artist name information in the content in the same recording medium A process 705 for determining whether or not there is a process 7 and a process 7 for determining an erasure content from the erasure candidate content 7 6, if it is determined that erasing the process 706, adds the process 707 for performing erasure automatically or manually, the editing process is performed. Here, as an example, the same content is determined by the song name information and the artist name information. However, when other tag information, compression method, and compression rate are selected in the processing 702, these are selected. A process for determining is added between the processes 703 and 706.

  Here, it is assumed that the user can arbitrarily select an operation control determination process, a process for determining which information is used to determine the same content, and a process for selecting an erasure content from the erasure candidate content.

Examples of screen display at this time are shown in FIGS.
FIG. 10 shows a content list screen 850 which is a screen display example for displaying a list of content in the mass storage / playback apparatus. FIG. 11 shows an automatic erasure / manual erasure selection screen 860 as an example of a screen display for selecting whether the same content is automatically erased or the user erases it. FIG. 12 shows a screen 870 displayed when automatic erasure is selected, which is a screen display example displayed when automatic erasure is selected in FIG. By selecting an item to be preferentially deleted on this screen, the content can be automatically deleted from the large-capacity recording medium. FIG. 13 is a screen 880 displayed when manual erasure is selected, which is a screen display example displayed when manual erasure is selected in FIG. Since a list of the same content is displayed on this screen, the user can delete from the large-capacity recording medium by selecting the content to be deleted.

  For example, when it is determined that the same content is determined by the song name information and artist information in the tag information area as shown in FIG. 5, the artist names are stored in folder 1 and folder n-1 as shown in FIG. The album “Album” and “Best Album” of “Artist” are included, and the content “Content 8” in the two albums is the same content. Assuming that manual deletion is selected as shown in FIG. 11, there are two content candidates that can be deleted as shown in FIG. 13. In this case, “Content 8” of the selected “Best Album” is deleted.

  As described above, in the data editing method in the large-capacity recording / reproducing apparatus, it is determined whether the contents are the same by checking the matching of arbitrary data set in advance in the tag information area or the data area. Since such contents can be automatically or manually erased, it is possible to reduce the use capacity of the large-capacity data storage device.

Moreover, the data editing method in the first embodiment can be realized by replacing the folder operation of the large-capacity data storage device in the present embodiment with the operation of the disk-type recording medium recording / reproducing device in the first embodiment. .
(Embodiment 3)
Hereinafter, a data reproduction method and a data editing method according to Embodiment 3 will be described with reference to FIG.

FIG. 14 is a configuration diagram of a recording / reproducing apparatus according to Embodiment 3 of the present invention.
14, 300 is a recording / reproducing apparatus, 310 is a disk-type recording medium recording / reproducing apparatus, 320 is a semiconductor memory recording / reproducing apparatus, 330 is a large capacity recording / reproducing apparatus, and 340 is a large capacity recording / reproducing apparatus connected via a network. , 400 are semiconductor memory cards. The recording / reproducing apparatus 300 includes any one or more of a disk-type recording medium recording / reproducing apparatus 310, a semiconductor memory recording / reproducing apparatus 320, and a large-capacity recording / reproducing apparatus 330.

  FIGS. 14A to 14D are configuration examples each incorporating one device of a disk type recording medium recording / reproducing device 310, a semiconductor memory recording / reproducing device 320, and a large capacity recording / reproducing device 330. FIG.

  In FIG. 14 (e), the recording / reproducing apparatus 300 includes a disk-type recording medium recording / reproducing apparatus 310, a semiconductor memory recording / reproducing apparatus 320, a large-capacity recording / reproducing apparatus 330, and a large-capacity recording / reproducing apparatus 340 connected via a network. It is assumed that At this time, each of the large-capacity recording / reproducing apparatus 340 connected via the network to the disk-type recording medium recording / reproducing apparatus 310, the semiconductor memory recording / reproducing apparatus 320, and the large-capacity recording / reproducing apparatus 330 is described in the first embodiment. By assuming that it plays the same role as an individual (here, n = 4) disc type recording medium transporting device, the contents in the recording medium can be handled as described in the first embodiment. Since other operations are the same as those in the first embodiment, the description thereof is omitted.

  Similarly, the large-capacity recording / reproducing apparatus 340 connected to the disk-type recording medium recording / reproducing apparatus 310, the semiconductor memory recording / reproducing apparatus 320, and the large-capacity recording / reproducing apparatus 330 via the network is respectively described in the second embodiment. By assuming that it plays the same role as the number of folders (here, n = 4), the content in the recording medium can be handled as described in the second embodiment. Since other operations are the same as those in the second embodiment, the description thereof is omitted.

  The configuration of the present embodiment corresponds to a configuration in which the same content can be judged between different recording and playback devices, the same content is not randomly or shuffled, and the same content is deleted. is doing.

  As described above, by using content data to determine whether or not the content is the same, a data playback method for preventing continuous playback of the same content, and a capacity used for a large-capacity data storage device It is possible to provide a data editing method for reducing the amount of data.

  The present invention provides a data reproduction method for preventing continuous reproduction of the same content unless a user desires, and a data editing method for reducing the use capacity of a large-capacity data storage device. It is useful for a data reproducing method and a data editing method in a device capable of storing a plurality of recording or reproducing media or a large-capacity data storage device.

Configuration diagram of a recording / reproducing apparatus capable of mounting a plurality of discs in Embodiment 1 of the present invention The figure explaining the method of judging the same content in the data area in Embodiment 1 of this invention The figure explaining the method of judging the same content in the tag information area in Embodiment 1 of this invention FIG. 3 is a flowchart illustrating a data reproduction method according to Embodiment 1 of the present invention. The figure which illustrates the tag information selection screen in Embodiment 1 of this invention The figure which illustrates the effective log | history number selection screen in Embodiment 1 of this invention The figure for demonstrating the specific example of the data reproduction method in Embodiment 1 of this invention. Configuration diagram of a large-capacity recording / playback apparatus divided into a plurality of folders in Embodiment 2 of the present invention Flow chart for explaining a data editing method in Embodiment 2 of the present invention The figure which illustrates the list screen of the content in Embodiment 2 of this invention The figure which illustrates the automatic erasure | elimination / manual erasure selection screen in Embodiment 2 of this invention The figure which illustrates the screen displayed when the automatic deletion in Embodiment 2 of this invention is selected The figure which illustrates the screen displayed when manual deletion in Embodiment 2 of the present invention is chosen. Configuration diagram of recording / reproducing apparatus in Embodiment 3 of the present invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Recording / reproducing apparatus 110 Disc type recording medium conveying apparatus 120 Disc type recording medium conveying apparatus 130 Disc type recording medium conveying apparatus 140 Disc type recording medium conveying apparatus 150 Disc type recording medium 160 Disc type recording medium recording / reproducing apparatus 170 Conveyance control apparatus 200 Large capacity recording / reproducing apparatus 210 Folder in large capacity recording / reproducing apparatus 220 Folder in large capacity recording / reproducing apparatus 230 Folder in large capacity recording / reproducing apparatus 240 Folder in large capacity recording / reproducing apparatus 300 Recording / reproducing apparatus 310 Disc type recording medium Recording / reproducing apparatus 320 Semiconductor memory card recording / reproducing apparatus 330 Large-capacity recording / reproducing apparatus 340 Large-capacity recording / reproducing apparatus connected to a network 400 Semiconductor memory card 500 Content data 510 Data area 520 Tag information area 800 Screen for selecting information in tag information area 810 Input screen for number of effective histories 820 Recording / playback device 830 Album “Album”
840 Album “Best Album”
850 Contents list screen 860 Automatic deletion / manual deletion selection screen 870 Screen displayed when automatic deletion is selected 880 Screen displayed when manual deletion is selected

Claims (20)

A data reproduction method for randomly reproducing or shuffle-reproducing contents recorded on a plurality of disc-type recording media or a large-capacity recording / reproducing apparatus mounted on a recording / reproducing apparatus,
Selecting the content to be played,
Determining whether the played content has the same content,
A data reproduction method comprising: reproducing the content if there is no identical content, and returning to the step of selecting the content if there is the same content. A data reproduction method for randomly reproducing or shuffle-reproducing contents recorded on a plurality of disc-type recording media or a large-capacity recording / reproducing apparatus mounted on a recording / reproducing apparatus,
Selecting the content to be played,
Selecting whether to determine if there is identical content,
A step of determining whether the reproduced content has the same content when the determination is made;
A data reproduction method comprising: a step of reproducing the content when there is no determination and the case where there is no identical content, and a step of returning to the content selection step when there is the same content.   A step of selecting the number of effective histories for determining the number of songs played in the past when determining whether there is the same content, and the same content within the number of effective histories 3. The data reproducing method according to claim 1, wherein it is determined whether or not there is any data.   3. When determining whether or not there is the same content, the audio or video data included in the content is compared to determine whether or not there is the same content. 4. The data reproduction method according to any one of 3.   4. When determining whether or not there is the same content, the tag information included in the content is compared to determine whether or not there is the same content. The data reproduction method according to any one of the above.   When determining whether there is the same content, it is characterized by comparing whether any tag information or all tag information among a plurality of tag information included in the content, and determining whether there is the same content The data reproduction method according to claim 1, claim 2, or claim 3.   2. When determining whether or not there is the same content, the audio or video data included in the content and the tag information are combined and compared to determine whether or not there is the same content. The data reproduction method according to claim 2 or claim 3.   The determination of whether or not there is the same content by comparing the tag information included in the content and a compression method of audio or video data in combination, and determining whether or not there is the same content. 4. A data reproduction method according to claim 1 or claim 2 or claim 3.   The determination of whether or not there is the same content by comparing the tag information included in the content and the compression rate of the audio or video data in combination to determine whether or not there is the same content. 4. A data reproduction method according to claim 1 or claim 2 or claim 3.   When judging whether there is the same content, the tag information contained in the content, the compression method of the audio or video data, and the compression rate of the audio or video data are combined and compared to determine whether there is the same content. 4. The data reproducing method according to claim 1, wherein the data reproducing method is determined. When editing content recorded on a large-capacity recording / playback device,
Determining whether the same content is recorded in the content recorded in the large-capacity recording / playback device;
And a step of deleting any content when the same content is recorded. When editing content recorded on a large-capacity recording / playback device,
Selecting whether to determine if there is identical content,
A step of determining whether the reproduced content has the same content when the determination is made;
And a step of deleting any content when the same content is recorded.   13. The data editing method according to claim 11, wherein deletion of the content is arbitrarily selected and performed automatically or manually.   12. When determining whether or not the same content is recorded, the audio or video data included in the content is compared to determine whether or not the same content is recorded. The data editing method according to claim 12 or claim 13.   13. When determining whether or not the same content is recorded, the tag information included in the content is compared to determine whether or not the same content is recorded. The data editing method according to claim 13.   When determining whether or not the same content is recorded, it is determined whether or not the same content is recorded by comparing arbitrary tag information or all tag information among a plurality of tag information included in the content. The data editing method according to claim 11, wherein the data editing method is the same as the data editing method according to claim 11.   When determining whether or not the same content is recorded, the audio or video data included in the content and the tag information are combined and compared to determine whether or not the same content is recorded. The data editing method according to claim 11, claim 12, or claim 13.   When determining whether or not the same content is recorded, the tag information included in the content and the compression method of audio or video data are combined and compared to determine whether or not the same content is recorded The data editing method according to any one of claims 11, 12, and 13.   When determining whether or not the same content is recorded, the tag information included in the content and the compression rate of the audio or video data are combined and compared to determine whether or not the same content is recorded The data editing method according to any one of claims 11, 12, and 13.   When determining whether the same content is recorded, the same content is recorded by comparing the tag information, the compression method of the audio or video data, and the compression rate of the audio or video data included in the content. The data editing method according to claim 11, wherein the data editing method determines whether the data is present.

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