| 摘要 |
<P>PROBLEM TO BE SOLVED: To form a plurality of good recording marks including a recording mark near the limit of optical diffraction. <P>SOLUTION: The optical disk device 1 for recording/reproducing information is provided with a condition changing means 4 for changing a recording pulse so as to shorten a recording mark length which becomes a reference for changing preset recording conditions, and changing the recording conditions so as to increase recording power, a reproduced signal quality measuring part 28 for measuring the quality of the reproduced signal of each information recorded under the plurality of changed recording conditions, and a recording condition selection means for selecting, among the plurality of changed recording conditions, a recording condition for realizing the best quality of the reproduced signal. <P>COPYRIGHT: (C)2008,JPO&INPIT |
