| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the problem that when optimizing recording conditions of a recording type multi-layer optical disk, it is required to optimize recording conditions of each information layer, so that a test writing time is remarkably increased due to increase in information layers. <P>SOLUTION: In the information recording and reproducing device, trial writing is performed for only a part of information layers, predetermined calculation is performed by using the result of test writing and predetermined temporary recording conditions information, recording conditions of each whole information layers are optimized. <P>COPYRIGHT: (C)2009,JPO&INPIT |
