| 摘要 |
Optical data storage medium comprising a first disc (11) and a second disc (12) both having an access surface (16) and a storage layer covered by the access surface, wherein the storage layer is adapted to be accessed by a laser beam via the access surface, characterized in that the first disc and the second disc are adapted to be attached to each other in such a way, that the access surface of the first disc covers the access surface of the second disc. Further a device for reproducing information from or recording information into at least one storage layer of such an optical data storage medium. ® KIPO & WIPO 2007
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