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Home > Hardware Reviews > Optical Storage > 54x CD-RW

Sunday, June 22, 2003
Mitsumi CR-485FTE CD-RW

3. Error Correction Tests

Mitsumi CR-485FTE - Page 3

CD Error Correction Tests

This part of our review is devoted to all those of our readers interested in finding tough reader, able to read dirty, scratched of other physically damaged media. In the following tests we examined the error correcting capabilities of the Mitsumi drive, when reading an artificially damaged CD-R. For the test we used the Almedio ABEX pressed discs.


Errors total
Num: 11720934
Errors (Loudness) dB(A)
Num: 122568
Avg: -55.7 dB(A)
Max: -7.3 dB(A)
Error Muting Samples
Num: 29647
Avg: 1.9 Samples
Max: 3147 Samples
Skips Samples
Num: 61
Avg: 405.7 Samples
Max: 1764 Samples
Total Test Result
53.1 points (of 100.0 maximum)

As we have mentioned before, it is normal to get read errors in this test, since the ABEX disc is artificially scratched. The average level of the reported errors is -55.7dB(A), which is an average rate. On the other hand many samples were muted and some other were skipped, resulting to an average score of 53.1 points out of 100. The performance can not be considered as a high one.

- ABEX TCD-726

Errors total
Num: 24
Errors (Loudness) dB(A)
Num: 10
Avg: -39.3 dB(A)
Max: -20.0 dB(A)
Error Muting Samples
Num: 0
Avg: 0.0 Samples
Max: 0 Samples
Skips Samples
Num: 0
Avg: 0.0 Samples
Max: 0 Samples
Total Test Result
94.0 points (of 100.0 maximum)

The total amount of errors is smaller in the case of the TCD-726 disc. The scratches on the disc are not as deep and wide as in the TCD-721 case, and the rest defects and fingerprints seem not to produce many errors while reading. Although the average level of the errors was -39.3(A), the performance is high, since the total number reported is only 10. The score for this test is very good. (94 points).

- Conclusion

Test Disc
Reading Speed
Average Score

The Mitsumi CR48XFTE gets a good score of 73.55 points out of 100 at our CD error correction tests. The drive can be a reliable reader with heavily defected discs, as we saw in the ABEX-726 test, but fails to adequately correct severe errors coming out from wide scratches.

CDSpeed Advanced DAE quality test
- ABEX 721R

The Nero CDSpeed showed that the drive cannot retrieve C2 error information. As a result, the drive did not give good results in this particular test, since the CDSpeed algorithm makes use of the C2 retrieved information for evaluating the performance of a drive.

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