| 摘要 |
PROBLEM TO BE SOLVED: To facilitate production by producing a first substrate formed with a reproduction only information region and a second substrate formed with a recordable information region in a position corresponding to the side inner than this region and bonding these substrates to each other by an adhesive. SOLUTION: The reproduction only information region 102 consisting of the prepit regions formed by modulating content information, such as music images, text data and numerical data, by an 8-16 modulation system of DVD standards and a reflection film of aluminum, gold, etc., covering this region is formed on the rear surface of the first substrate 101. The recordable information region 104 consisting of a region formed with guide grooves at a DVD-R standard pitch, reflection film of gold, etc., covering the surface of this guide groove region and further a dyestuff film covering the same is formed on the rear surface of the second substrate and the reproduction thereof with a reproduction only DVD reproducing device is made possible. The positions of both regions are so determined that the recordable information region 104 exists on the outer side of the reproduction only information region 102 when viewed from the front surface of the first substrate 101 when the first substrate 102 and the second substrate 103 are bonded to each other. |
