| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical recording medium in which a material layer which is eliminable is applied to a print layer so as to achieve purposes to prevent an illegal copy and to protect a copyright. <P>SOLUTION: The optical recording medium includes a transparent substrate, a reflective layer set up on the transparent layer, a protective layer set up on the reflective layer, a message arranged on the surface of the protective layer, and at least one opaque and eliminable material layer which is arranged on the protective layer and covers the message. <P>COPYRIGHT: (C)2004,JPO |
