| 摘要 |
[Object] To enable additional supplementary information such as PID to be utilized in a generally-used DVD player. [Solving Means] Additional supplementary information recorded with additional recording mark rows of the additional recording mark rows and pit rows is set to be previously recorded in a format of command information for instructing a normal DVD player to read. Similar to a so-called navigation command in a DVD system, in recording information that can be handled by the reproduction device, the additional supplementary information can be used, to thereby utilize the additional supplementary information in the current reproduction device.
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