Patent ID: 6064640
Filing Date: 2000-05-16
Classification: G11B

Abstract:
An optical disk apparatus comprising:a common processing mechanism for commonly performing processing on both a cartridge enclosed medium and an exposed medium which is not enclosed in a cartridge, and said common processing mechanism including a recording and/or reproducing mechanism having a spindle motor with a rotary shaft, wherein the cartridge enclosed medium is a medium with a hub for being attached to said spindle motor, the exposed medium is a non-hub medium; anda carrier detachable from an apparatus main body for mounting said non-hub exposed medium and inserting and ejecting said non-hub exposed medium into/from said common processing mechanism, said carrier having an upward facing opening,said carrier including a holder for enclosing and protecting said non-hub exposed medium and a turntable enclosed in said holder,said turntable including:a holding table having an upper portion and a lower portion, said non-hub exposed medium being mounted on said holding table;a first hub, provided on said upper portion of said holding table, for fitting into a hole of said non-hub exposed medium; anda second hub which is provided on said lower portion of said holding table and is detachably attached to a medium rotation driving unit of said spindle motor.