| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve a super resolution optical information recording medium, which can be identified as the super resolution optical information recording medium by using reproduction laser power for a regular optical information recording medium, and an optical information recording medium reproducing device capable of reproducing both media of the super resolution optical information recording medium and the regular optical information recording medium. <P>SOLUTION: In a super resolution medium 1, medium identification information for specifying a type of a medium is recorded in a medium information area 3 by use of pre-pits having length longer than length of a resolution limit of an optical system in a reproducing device 10. <P>COPYRIGHT: (C)2013,JPO&INPIT |
