Error Correction Tests

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: 923800
Errors (Loudness) dB(A)	Num: 48784	Avg: -73.7 dB(A)	Max:-36.0 dB(A)
Error Muting Samples	Num: 2986	Avg: 1.0 Samples	Max: 11 Samples
Skips Samples	Num: 0	Avg: 0 Samples	Max: 0 Samples
Total Test Result	76.9 points (out of 100.0 maximum)

TEAC`s DV-W58G results are quite good with the Abex 721R test disc, which is usually a hard disc to read accurately with most drives. There are relatively few totla errors, maximum loudness is also low at -36.0 dB(A) and there were no skipped samples. The final score of 76.9 out of 100 is very good.

- 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 reading by most drives. After finishing this test, the TEAC drive received a total score of 100.0. No errors were reported.

- 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	5/5	5/5	5/5	0/5	0/5

The TEAC drive played without noticeable clicks only the first three levels of the CD-Check Audio test disc. The fourth and fifth levels produced audible clicks throughout. The performance is not bad but does not place the TEAC among the better drives with this test.

- Summary

Test Disc	Reading Speed	Score
ABEX TCD-721R	Max	76.9
ABEX TCD-726		100.0
Average Score		88.45

The average score for the TEAC DV-W58G with the Abex test discs is 88.45 points. The performance is very good although it would have been nice to see it do better in the Audio Test Disc Check, reaching at least the fourth level, which would have placed it amongst the best drives.