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Home > Hardware Reviews > Optical Storage

Wednesday, March 05, 2008
ASUS DRW-2014L1T

3. CD Error Correction

In the following tests, we check the drive's behavior and error correction capabilities when reading scratched / defective audio discs. The test discs used were the ABEX series from ALMEDIO.

- ABEX TCD-721R

Errors total
Num : 1173529
Errors (Loudness)
56172
(-73.4A)db
Max :-35.0 dB(A)
Error Muting
Num : 3699
Avg : 1.0 Samples
Max : 9 Samples
Skips
Num : 0
Avg : 0.0 Samples
Max : 0 Samples
Total Test Result
76.5 points (of 100.0 maximum)

An average score for the ASUS drive. Although there were no skipped samples, the maximum Errors Loudness level is a slightly higher than needed, at -35.0 dB(A). A lot of error muting that gives us a clear image of the drive's high error hiding capabilities.

- ABEX TCD-726R

Errors total
Num : 0
Errors (Loudness)
Num : 0
Avg : -174.0 dB(A) dB(A)
Max : -174.0 dB(A) dB(A)
Error Muting
Num : 0
Avg : 0.0 Samples
Max : 0 Samples
Skips
Num : 0
Avg : 0.0 Samples
Max : 0 Samples
Total Test Result
100 points (of 100.0 maximum)

No loudness, no skipped samples. Generally, very good cd error correction capabilities that result in a very good score with the artificially defected ABEX 721R drive.

- 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
1
2
3
4
5
ASUS DRW-2014L1T
5/5
5/5
5/5
0/5
0/5

The drive managed to correctly play the first three tracks. Problems occurred with the fourth and fifth tracks. Average behavior here. Concluding, the drive had a relatively good response with CD errors, achieving a good score with the 721R defected disc.




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