Patent ID: 7242653
Filing Date: 2007-07-10
Classification: G11B

Abstract:
1. An optical disk drive apparatus comprising: a storage part configured to store a table in which information sets for varying recording conditions are pre-stored, said information sets corresponding to a plurality of recording speeds; a recording part configured to read out one of said information sets from said table corresponding to a selected recording speed of said recording speeds, to alter said recording conditions using said information set read out from said table and to record a predetermined signal in each of a plurality of frames of an optical disk at the selected recording speed under said recording conditions; a reproducing part configured to repeatedly reproduce said predetermined signals recorded in the plurality of frames recorded in one recording operation, until the number of reproductions of each of said predetermined signals exceeds a predetermined number; and a recording characteristics detecting part configured to detect the recording characteristics for each of said plurality of frames based on a plurality of reproduction signals obtained from the reproducing part.