| 摘要 |
<P>PROBLEM TO BE SOLVED: To accurately obtain the most suitable recording condition of an optical information recording medium having two or more information recording layers. <P>SOLUTION: The optical information recording medium includes a first information recording layer on which information is to be recorded by laser beam, and a second information recording layer on which information is to be recorded by the laser beam which has passed through the first information recording layer. The first information recording layer includes at least either a reproduction-only area or a recording and reproduction area. The second information recording layer includes a test recording area. At least one of the reproduction-only area and the recording and reproduction area, and the test area is located, such that one of the reproduction-only area and the recording and reproduction area includes an area of the first information recording layer, through which the laser beam for recording information in the test recording area passes. <P>COPYRIGHT: (C)2010,JPO&INPIT |
