| 摘要 |
Upon performing a recording/reproducing operation with respect to an optical disc at an operational speed higher than a standard operational speed, an operational rate is indicated by an operational rate indicator. Indication colors are changed according to the operational rate. Alternatively, a plurality of indicating elements are lighted according to the operational rate. Alternatively, characters, numerals, or symbols, etc., are displayed. Thereby, the operational speed (the operational rate) becomes easily visible from outside of the apparatus.
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