| 摘要 |
Provided is a digital data recording device capable of efficiently backing up media data of digital data requiring copyright protection and personal information protection within a range of the copyright holder's permission. The digital data recording device includes a record control unit for recording a media file configured by a media data file and a media management file containing decryption key information of the media data file to a recording device, backing up the media data file or the media management file to the recording device or a removable recording device, and restoring the media data file or the media management file backed up in the recording device or the removable recording device.
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