| 摘要 |
A hologram recording/reproducing device for recording and reproducing information to/from a hologram recording medium adapted to multiplexing and recording of a plurality of page data. The medium includes an address region and a recording region, the medium including a plurality of physical addresses each composed of a first physical address and a second physical address. The recording/reproducing device includes: a recording part; and a reproducing part, the recording part specifying the plurality of physical addresses to write user data into a specific physical address, the recording part writing the second physical address together with the user data in a specific recording unit region specified by the second physical address, the reproducing part reading page data recorded in a designated physical address.
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