| 摘要 |
The present invention provides an optical disk recording apparatus which can reduce consumption of a power calibration area and prevent recording quality from being deteriorated by appropriately renewing an optimum recording power, and a method for setting an optimum recording power in an optical disk recording apparatus. The optical disk recording apparatus stores an optimum recording power which is obtained by performing trial writing in the power calibration area and an amplitude level Am of a reproduction signal, and in case of additional recording in a write-once optical disk, obtains an amplitude level Ar by reproducing again the area in which the trial writing is previously performed, and compares the stored amplitude level Am with the amplitude level Ar. When the amplitude level is lowered, an optimum recording power is renewed by performing trial writing again, and when the amplitude level is not lowered, the additional recording is performed using the stored optimum recording power.
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