作者: Satoshi Otsuka , Minoru Tobita , Tamotsu Yamagami , Goro Fujita
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摘要: An optical disk having a plurality of substantially concentric tracks, each which includes segments comprising servo area ARs provided with pits for giving information to drive and data ARd. Identification marks SGM, ADM, STM1, STM2 are recorded in the ARs. The identification provide identifying respective depending on recording position