Cartridge type recording medium and disk-shaped recording medium including a hole for centering each thereof, cartridge, driving unit and driving method
The object of the present invention is to provide a technology which has high compatibility and can provide users with conveniences. A new system recording medium has a center hole formed on a recording disk and a center hole formed on a center hub , so that the recording medium can respond to both...
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| Format: | Patent |
| Sprache: | eng |
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