| 摘要 |
PURPOSE:To shorten an access time of a disk and improve operating efficiency by providing movably plural disks in one cartridge case. CONSTITUTION:When an optical disk cartridge is mounted to a driving device, a shutter 3 is opened by a driving device and a window 2 for reading and writing appears. In order to perform a reading/writing of information of a prescribed optical disk 7, a disk holding plate 5 rotates centering a rotating axis 4. When the disk comes to a position of the window 2, a rotation of the holding plate stops. A spindle is mounted on a central jig 6 of the disk 7, and while rotating the disk 7, a writing and reading of information is done by an optical head through the window 2, In this manner, plural optical disks 7 are successively moved by rotating the holding plate 5 and the plural optical disks 7 are driven.
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