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Home > Hardware Reviews > Optical Storage

Friday, February 08, 2008
Samsung SH-S203D

3. CD error correction tests

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.

- ABEX TCD-721R

Errors total
Num : 397810687
Errors (Loudness)
Num 1882477
Avg : -23,7 dB(A)
Max : -3,2dB(A)
Error Muting
Num : 758564
Avg : 1,1 Samples
Max 470 Samples
Skips
Num 15
Avg 2760,1 Samples
Max 2939 Samples
Total Test Result
47,5 points (of 100.0 maximum)

The drive's error correction mechanisms are bad. The noise started at an early position of the disc (4 min). This denotes that the drive does not have good error hiding mechanisms. Furthermore, the errors go up to -12 db, thus making the noise audible.

- ABEX TCD-726

Errors total
Num 397810675
Errors (Loudness)
Num :1882477
Avg : -23,7 dB(A)
Max : -3,2dB(A)
Error Muting
Num :758523
Avg : 1,1 Samples
Max :470 Samples
Skips
Num :15
Avg :2760,1 Samples
Max :2939 Samples
Total Test Result
47,5 points (of 100.0 maximum)

Again, the drive fails to correct the errors from the artificial scratch cd.

- 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
SH-S203D
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. An average performance for Samsung SH-S203D.




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