| 摘要 |
PURPOSE:To enlarge the applicable range of an information recording system using an optical disk having an unrewritable information recording part by providing a rewritable information recording part. CONSTITUTION:On the central part of the disk of an opposite surface to the information recording part recording the unrewritable information of the optical disk 1, two EEP-ROMs 4, 5 for recording various kinds of information incidential to the unrewritable information. e.g. reproducing order. zooming magnification, character information, etc., are beried and arranged in symmetriacl positions. |
