| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily determine a blank disk conforming to a DVD Download standard. <P>SOLUTION: The optical disk device is provided with a first identifying means 4 for identifying disk information written in the lead-in zone of an optical disk 1, second identifying means 4 for identifying that data is not recorded in a data zone of the optical disk 1, and a determining means 5 for determining that the optical disk is a blank disk conforming to the DVD Download standard from an output from the first identifying means and an output from the second identifying means. <P>COPYRIGHT: (C)2009,JPO&INPIT |
