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

Tuesday, June 22, 2004
Asus DRW-0804P

3. Error Correction Tests

Asus DRW-0804P - Page 3

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: 1266600
Errors (Loudness) dB(A)
Num: 60324
Avg: -73.2dB(A)
Max:-34.9 dB(A)
Error Muting Samples
Num: 3957
Avg: 1.0 Samples
Max: 40 Samples
Skips Samples
Num: 0
Avg: 0 Samples
Max: 0 Samples
Total Test Result
76.4 points (out of 100.0 maximum)

The maximun error loudness is quite good.

- ABEX TCD-726

 

 

Errors total
Num: 522
Errors (Loudness) dB(A)
Num: 23
Avg:-62.8 dB(A)
Max: -50.4 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
92.7 points (out of 100.0 maximum)

This is about average performance with both the Abex TCD-721R and TCD-726 test discs.

- 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. Winamp, PowerDVD, Windows Media Player). Each level is considered as passed, if the tone coming out from the speakers is clear and 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
Asus DRW-0804P
5/5
5/5
5/5
0/5
0/5

The drive managed to playback the first three levels of the audio check disc without problem. The drive played back the three tracks without audible clicks while it found it hard to pass the last two error correction levels. Again, average performance.

- Summary

Test Disc
Reading Speed
Score
ABEX TCD-721R
Max
76.4
ABEX TCD-726
92.7
Average Score
84.55

The Asus DRW-804P received an average score of 84.55 points out of 100 with the two Abex test discs.




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