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Home > Hardware Reviews > Optical Storage > 52x CD-RW

Friday, June 25, 2004
Asus CRW-5232AS

3. CD Error Correction Tests

ASUS CRW-5232AS Recorder - Page 3

CD Error Correction Tests

In the following tests we check the drive's behavior when it comes to reading scratched / defected discs. The test discs we use are the ABEX series from ALMEDIO.


Errors total
Num: 891119
Errors (Loudness) dB(A)
Num: 48849
Avg: -71.5 dB(A)
Max: -10.8 dB(A)
Error Muting Samples
Num: 2640
Avg: 1.0 Samples
Max: 8 Samples
Skips Samples
Num: 25
Avg: 136.2 Samples
Max:742 Samples
Total Test Result
60.8 points (out of 100.0 maximum)
C2 Accuracy
98.0 % (out of 100.0% maximum)

The ASUS drive has poor performance with the ABEX TCD-721R. The total error count is quite low at 891119 as is the loudness error count, however the loudness level is very high. From the graph we can see that the error levels generated from the 24th minute to the end of the test disc are at a very high level, hovering somewhere around -40db. Consequently, we have high number of skipped samples but C2 accuracy received a good score of 98 %. The total test result score of 60.8 % is relatively low.

- ABEX TCD-726

Errors total
Num: 52
Errors (Loudness) dB(A)
Num: 19
Avg: -73.8dB(A)
Max: -20.0dB(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
92.8 points (out of 100.0 maximum)
C2 Accuracy
64.9 % (out of 100.0% maximum)

The Abex TCD-726 test disc is usually a simpler case for error correction. The CRW-5232AS drive performed better here. The total error count is low while there aren` t any muted or skipped samples. The total score of 92.8 out of 100 is good and the C2 accuracy score is acceptable.

- CD-Check Audio Test Disc

The CD-Check Test Disc is a very useful 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 difficult tests. These tracks are referred as Check Level-1 through Check Level-5.

The files are reproduced (played) through a software multimedia player (i.e. Windows Media Player). Each level is considered as passed, if the tone coming out from the speakers is smooth, continuous without interruptions, skipping or looping. The higher the Check Level passed, the more reliable the sound reproduction of the tested device.

Error Level

The drive passed four of the five Check Levels of the test. The performance reveals good sound reproduction and error correction. The fifth level includes an error size of 1.500mm, and here, the drive produced many audible clicks.

- Conclusion

Test Disc
Reading Speed
Average Score

The performance of the ASUS CRW 5232AS was average with a final average score of 76.8 out of 100.

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