| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical disc cartridge in which a recording capacity per unit volume can be enhanced and large recording capacity with compactness in size can be made possible. SOLUTION: A recording layer is created on one side of a flexible substrate and a sheet-like optical disc 1 with flexibility for a whole disc is housed inside a cartridge case 5 with a plurality of the discs stacked up. COPYRIGHT: (C)2004,JPO
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