Optical disk apparatus

摘要

While a control portion (26) changes the laser power stepwise with a laser power control portion (4), the optical disk apparatus of the present invention compares a predetermined level with an output by a detector (24) that detects the correlation between a pattern to be recorded on the optical disk and the reproduction signal of the recording pattern detects as the minimum recording power the recording power when the originally smaller of the predetermined level and that output by the detector becomes larger than the other, and sets the optimum recording power to a power obtained by multiplying the detected minimum recording power by a certain factor.