| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a specific, optical format of address data that do not interfere with recording of data. <P>SOLUTION: The optical disk 101 records recording data on each of recording layers 102, 103 which are in a multilayered structure. A spiral guide groove that meanders in a radial direction of the optical disk 101 is provided on each of the recording layers 102, 103. The recording data are recorded on or among the guide groove. ADIPs 125 to 128 that are address data are recorded as modulation of the meandering of the guide groove, and the address data indicate a position of the recording layer 102 or 103, on which the meandering of that guide groove is formed, in the radial direction of the optical disk 101. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
