| 摘要 |
PROBLEM TO BE SOLVED: To prevent degradation in recording compatibility and playback compatibility due to a difference in recording quality when recording quality is different with respect to a threshold of switch processing due to a difference in a reproducing means, and to secure compatibility of a device especially between drives of PRML correspondence/non-correspondence, and between drives having different recording speeds/reading speeds. SOLUTION: This information recording device for recording information in a recording medium provided with a first recording area for recording information and a second recording area being a spare area for the first recording area is provided with a recording part for writing information in the recording area of the recording medium, and a control part for controlling the recording part, and a reference value to be used in the case of changing a recording area for writing the information therein from the first recording area to the second recording area, is made different between when processed by a first signal processing method and when processed by a second signal processing method. COPYRIGHT: (C)2011,JPO&INPIT
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