| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical disk in a storage case having a sufficient light-fast characteristic. <P>SOLUTION: This relates to an optical disk in a storage case having an optical disk cartridge compartment where an optical disk with a recording layer on its substrate is stored in a cartridge formed with an opening and a storage case having a light blocking characteristic with an opening for freely taking in and taking out the cartridge compartment. <P>COPYRIGHT: (C)2007,JPO&INPIT |
