Patent ID: 7272089
Filing Date: 2007-09-18
Classification: G11B

Abstract:
1. An optical disc recording method comprising: (a) performing at a predetermined velocity a trial write of data in an optical disc capable of recording data, prior to a main record, in accordance with characteristics between a record velocity and an optimum record power, wherein the predetermined velocity is set by a predetermined method; (b) measuring the quality of a signal reproduced from the data trial-written at said step (a); (c) judging from the quality of the reproduced signal measured at said step (b) whether the predetermined velocity is a recordable velocity satisfying the characteristics between the record velocity and the optimum record power; (d) determining a fastest recordable velocity satisfying the characteristics between the record velocity and the optimum record power; and (e) performing the main record in accordance with the fastest recordable velocity, wherein said step (d) determines the fastest recordable velocity satisfying the characteristics between the record velocity and the optimum record power, by gradually lowering the predetermined velocity for the trial write of the data in the optical disc set in accordance with the characteristics, starting from a predetermined record velocity.