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Home > Hardware Reviews > Optical Storage

Friday, February 01, 2008
Optiarc BC-5500A

3. CD error correction

CD Error Correction In the following tests, we check the drive's behavior when reading scratched / defective audio discs. The test discs used were the ABEX series from ALMEDIO.


Errors total
Num : 1101997
Errors (Loudness)
Num 54037
Avg : -73,7dB(A)
Max : -35,5dB(A)
Error Muting
Num : 3503
Avg : 1,2 Samples
Max : 369 Samples
Num 0
Avg : 0.0 Samples
Max : 0 Samples
Total Test Result
76,4 points (of 100 maximum)

A relatively good score for the Optiarc drive here. Low average errors unveil good error correction capabilities.

- ABEX TCD-726

Errors total
Num : 209
Errors (Loudness)
Num :54
Avg : -84,5dB(A)
Max : -54,5dB(A)
Error Muting
Num : 0
Avg : 0.0 Samples
Max : 0 Samples
Num : 0
Avg : 0.0 Samples
Max : 0 Samples
Total Test Result
91,6 points (of 100.0 maximum)

Still a good performance here although some other drives manage to completely correct the errors caused by the specific defects. However, the reported errors are low enough to be completely corrected.

- CD-Check Audio Test Disc

The CD-Check Test Disc is another tool for evaluating the Sound Reproduction / Error correction capabilities of a CD player. The disc offers a signal combination with disc error patterns to rate the drive's abilities to read music and reproduce it completely. Five tracks on the disc contain a sequence of progressively more difficult tests. These tracks are referred to as Check Level-1 through Check Level-5.

The tracks are reproduced through a software multimedia player (e.g. Windows Media Player). Each level is considered as passed, if the tone is smooth, continuous without interruptions, skipping or looping. The higher the Check Level passed, the more reliable the sound reproduction of the tested drive.

Error Level

The drive managed to correctly play the first three tracks. Problems occurred with the fourth and fifth tracks.

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