Patent ID: 6968561

Claim:
An optical library comprising: an accommodation rack for accommodating a plurality of disk cartridges; an optical assembly having: optical elements necessary for a generation and a detection of a light beam used to record and reproduce information, and a mechanism for adjusting a position of the light beam; a moving mechanism configured to move to a position corresponding to one of the disk cartridges; a disk cartridge lock mechanism configured to hold the disk cartridges at a predetermined position within the optical library, and to eject the disk cartridges outside the optical library; and a library-side-connector configured to be fitted into and electrically connected to a cartridge-side-connector on one of the disk cartridges, wherein said disk cartridge accommodation rack is configured such that it can be mounted in and detached from the optical library and a part of a frame of said disk cartridge accommodation rack is configured such that it is fitted into said disk cartridge lock mechanism.