Patent ID: 7227818
Filing Date: 2007-06-05
Classification: G11B

Abstract:
1. In a method of recording data into a recording medium by forming a recording region which is physically different from the nonrecorded portions, an optical data recording/reproducing method comprising: a first trial writing operation in which trial writing data are recorded into the recording medium while changing the recording power conditions, the recorded trial writing data are reproduced, and the reproduced trial writing data are evaluated to set an optimum recording power; and a second trial writing operation in which trial writing data are recorded into the recording medium while changing the servo conditions, the recorded trial writing data are reproduced, and the reproduced trial writing data are evaluated to set optimum servo conditions; wherein after the servo conditions are set by said second trial writing operation, a third trial writing operation is performed in which servo conditions are fixed to the recording medium, the trial writing data are recorded while changing the recording power, the recorded trial writing data are reproduced, and the reproduced trial writing data are evaluated to again set an optimum recording power.