| 摘要 |
PROBLEM TO BE SOLVED: To provide a test device capable of easily inspecting a decoder of a recording medium in need of a lot of data. SOLUTION: On an evaluation board 20 for inspection, the data producing function 21 is furnished for producing test data by replacing a part of reproduced data supplied from an MO drive 33 with error data. Further, since an optical disk control(ODC) chip 10 being an object for inspection is provided with the format information of the reproduced data, the evaluation board 20 capable of automatically producing the test data is supplied at a low cost with the a simple constitution by obtaining the timing for substituting for the error data from the ODC chip 10.
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