| 摘要 |
PROBLEM TO BE SOLVED: To enable reproduction by all optical recording medium reproducing devices and to enable the visual recognition of the outermost peripheral position of an information region from the reproducing surface side or printed display surface side of a disk by forming a first reflection layer covering the information region and forming a second reflection layer via an annular region on the non-information region existing on the outer side of the information region. SOLUTION: The information region 2 is formed on the surface of a transparent substrate 1 consisting of a polycarbonate resin, acrylic resin or glass, etc. This information region 2 is covered with the first reflection layer. The non- information region 3 on the outer side of the information region 2 is provided with the annular region 5 where the reflection layer, etc., are not formed. Further, the second reflection layer 6 is formed to an annular shape on the outer side of the annular region 5 to constitute a 12cm maxi-CD. As a result, the discrimination of the outer peripheral end of the information region 2 is made possible by the annular region 5. The CD enables a user to be conscious of not touching the information region 2 with the fingertips, etc. The reproduction of all of the CD reproducing devices is made possible by the second reflection layer 6. |
