| 摘要 |
A mini disc or a compact disc can be alternatively loaded on a single turntable of a disc player. A compact disc is loaded, a first hub is inserted into a central hole of the compact disc so as for the compact disc to be placed on a first loading face, and then, a clamper head which has a cover, a retainer, and a clamper wheel assembled with each other clamps the compact disc. Meanwhile, when a mini disc is loaded, a mini disc cartridge is loaded directly on a turntable. In this case, the mini disc cartridge is firmly secured on the turntable owing to a magnetic interaction between the metal disc cartridge and a first magnet provided in the turntable.
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