| 摘要 |
PROBLEM TO BE SOLVED: To solve a problem wherein, with a conventional optical disk drive and a recording method of the optical disk drive, deterioration of recording quality and address information of the optical disk cannot be detected and results in a recording error, because of deviation of a tilt angle and a focusing position of an optical disk board surface and an objective lens to an optical disk which generates warpage by variation of temperature from start time of recording. SOLUTION: The present invention provides an optical disk drive which provides stable recording operation/recording quality, since deterioration of recording quality is avoided by avoiding occurrence of focus position deviation due to variation of temperature in a printable medium which produces warpage by raise of inner temperature during recording operation. COPYRIGHT: (C)2008,JPO&INPIT
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