| 摘要 |
A three-dimensional optical recording medium includes: an optical information recording layer and a recording portion that stores managing information of the three-dimensional optical recording medium. The recording portion is optically or electromagnetically readable, for example, a barcode, an RFID tag, a magnetic recording material, and is disposed at a periphery of the three-dimensional optical recording medium which may be formed in a disk or in a card. An optical disk cartridge including a cartridge case for housing the medium as optical disk cartridge has the recording portion at the medium or the cartridge case.
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