| 摘要 |
In an optical disk apparatus for a rewritable optical disk including a test area including a plurality of partitions, an erase process is performed by emitting a laser light beam of a DC erase power to the test area from a laser power source before performing an OPC operation, that is, before recording test data on one of the partitions of the test area. By doing so, the variation of an optimum recording power of a laser light beam caused by an unsteady condition of the test area, such as the variation of the characteristic of recording sensitivity of the test area, can be minimized or avoided. As a result, an optimum recording power of a laser light beam can be accurately and stably determined in each OPC operation.
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