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Home > Hardware Reviews > Optical Storage > DVD Recorders 8x

Tuesday, April 13, 2004
Teac DV-W58G-A

3. CD Error Correction Tests

TEAC DV-W58G-A - Page 3

Error Correction Tests

In the following tests we check the drive's behavior when reading scratched / defective audio discs. The test discs are the ABEX series from ALMEDIO.

- ABEX TCD-721R

Errors total
Num: 1015916
Errors (Loudness) dB(A)
Num: 51560
Avg: -73.6 dB(A)
Max:-36.0 dB(A)
Error Muting Samples
Num: 2986
Avg: 1.0 Samples
Max: 11 Samples
Skips Samples
Num: 3273
Avg: 0 Samples
Max: 0 Samples
Total Test Result
76.7 points (out of 100.0 maximum)

TEAC DV-W58G-A had a good performance with the Abex 721R test disc. The maximum error loudness at -36.0 dB(A) is low, which means that there is no case of experiencing audible errors.

- ABEX TCD-726

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

The 726 Abex test disc is easier for most drives to read. Teac drive just ignored the defected area on the disc.

- 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 reading music abilities and reproduce it completely. Five tracks on the disc contain a progressively difficult sequence. These tracks are referred to as Check Level-1 through Check Level-5.

The tracks 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 drive.

Error Level
1
2
3
4
5
TEAC DV-W58G-A
5/5
5/5
5/5
0/5
0/5

The TEAC drive played only the first three levels of the CD-Check Audio test disc without noticeable clicks. The fourth and fifth levels produced continuous audible clicks. The performance is acceptable but we expected to be better.

- Summary

Test Disc
Reading Speed
Score
ABEX TCD-721R
Max
76.7
ABEX TCD-726
100.0
Average Score
88.35

The average score for the TEAC DV-W58G with the Abex test discs is 88.35 points. The performance is very good, but we cannot say the same for the CD-Check Audio Test Disc.




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