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Home > Hardware Reviews > Optical Storage > 48x CD-RW

Tuesday, November 19, 2002
PleXWriter PX-W4824U CD-RW

3. CD Error Correction

PleXWriter PX-W4824U CDR-W- Page 3

Error Correction Tests

In the following tests we examine the reading error correction capabilities of the PleXWriter PX-W4824U.

- EAC CD-R Test Disc

- Test Results (Max Reading)

At full speed, the PX-W4824U starts reporting errors at 18mins. The errors within the black triangle defect were few but they reached the -6.3 dB(A). The five scratches are not repaired giving a score of 70.1, out of 100 (max).

Errors total
Num: 153460
Errors (Loudness) dB(A)
Num: 10009
Avg: -75.7 dB(A)
Max: -6.3 dB(A)
Error Muting Samples
Num: 1585
Avg: 1.6 Samples
Max: 33 amples
Skips Samples
Num: 7
Avg: 10.3 Samples
Max:36 amples
Total Test Result
70.1 points (of 100.0 maximum)

- ABEX TCD-721R

- Test Results (Max speed)

At the maximum reading speed, the drive got a score of 58.5. The drive gave many errors and the average Loudness errors level was increased over the previous test to -65.4dB(A).

Errors total
Num: 4199860
Errors (Loudness) dB(A)
Num: 82140
Avg: -65.4 dB(A)
Max: -9.7 dB(A)
Error Muting Samples
Num: 152755
Avg: 4.9 Samples
Max: 597 Samples
Skips Samples
Num: 67
Avg: 6.5 Samples
Max: 24 Samples
Total Test Result
58.5 points (of 100.0 maximum)

- ABEX TCD-726

- Test Results (Max Speed)

At the maximum reading speed, the drive fully repaired the errors and gave only a few errors at 27mins. The total score is very high (92.9) and the performance is very good.

Errors total
Num: 12
Errors (Loudness) dB(A)
Num: 14
Avg:-85.2 dB(A)
Max: -72.7
Error Muting Samples
Num: 0
Avg: 0 Samples
Max: 0 Samples
Skips Samples
Num: 0
Avg: .0 Samples
Max: 40 Samples
Total Test Result
92.9 points (of 100.0 maximum)

- Conclusion

Test Disc
Reading Speed
Score
EAC CD-R
Max
70.1
ABEX TCD-721R
58.5
ABEX TCD-726
92.9
Average Score
73.83

The PleXWriter PX-W4824U gets an average 73.83 score out of 100 at our reading error correction tests.

- C2 Information accuracy

- Test Results (MAX Speed)

The C2 accuracy of the PleXWriter PX-W4824U is very good with a 98.76% accuracy score as EAC analyser software showed:

Test Disc
Reading Speed
ASUS CRW5224
Score
EAC CD-R
Max
97.4
ABEX TCD-721R
Max
98.9
ABEX TCD-726
Max
100
Average Score
98.76

Below are the C2 error graphs as produced from EAC's analyser software...




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