| 摘要 |
In order to provide an optical disk drive and read/write apparatus, the time of erasure, recording and reproduction of data by which is shortened to heighten the apparatus in access speed and data transfer speed, in the apparatus according to the present invention, an optical disk 4 is clamped to a turntable 2 supported with bearings 24 by a housing, and an optical head 5 is movably supported by the housing so as to face the disk. Four such optical heads 5 are disposed at equiangular intervals on a circle, and controlled independently of each other to perform the erasure, recording and reproduction of data from and in the disk 4 so as to make the apparatus much higher in access speed and data transfer speed than in the case that only one optical head is used.
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