| 摘要 |
According to one embodiment, there is provided an optical disk apparatus including: a first determination unit configured to set a reference tracking offset and determine a reference recording power by an optimum power control processing; a tracing unit configured to trace a predetermined area in an optical disk by changing the tracking offset through use of an erase power calculated from the reference recording power; an acquisition unit configured to acquire an address information acquisition rate serving as a rate for reading address information, when data are traced in the predetermined area of the optical disk by changing the tracking offset within a predetermined range by the tracing unit; a second determination unit configured to determine, from the address read rate, a recording-operation tracking offset used during processing for recording the data into the optical disk; and an adjustment unit configured to adjust the recording-operation tracking offset.
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