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Lite-ON LH20A1S

Aug 2,2007 0

3. CD Error Correction

 

Review Pages

1. Introduction
2. CD - DVD Reading
3. CD Error Correction
4. DVD Error Correction
5. CMC Magnetics CDR
6. Verbatim - CDR
7. Mitsubishi Kagaku - CDRW
8. DaTARIUS DVD Analyzer R 2x
9. TYG03
10. MCC 03RG20
11. TTH02
12. TTG02
13. ProdiscS05
14. ProdiscF01
15. OPTODISC R016
16. Infodisc-R20
17. CMC MAG AE1
18. YUDEN000 T03
19. MCC 004 (000)
20. RITEK R04
21. RICOHJPN R03 (004)
22. PRODISC R04 004
23. OPTODISC R16 000
24. OPTODISC OR8
25. DAXON AZ3 (000)
26. CMC MAG M01 000 (00)
27. RICOHJPN D00 001
28. MKM 003 000
29. MKM 03RD30
30. MKM A03 000
31. MKM 01RW6X01
32. Media List
33. Conclusion

 

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 : 6094230
Errors (Loudness)
Num : 80215
Avg : -51.3 dB(A)
Max : -14.4 dB(A)
Error Muting
Num : 21481
Avg : 1.1 Samples
Max : 17 Samples
Skips
Num : 1960
Avg : 6.4 Samples
Max : 36 Samples
Total Test Result
55.8 points (of 100.0 maximum)

Extremely high error total count, very high Loudness levels and far too many skipped samples. It is no wonder that the drive is awarded the very low score of 55.8. This is one of the worst performances we have seen with this disc.

- ABEX TCD-726

Errors total
Num : 26524
Errors (Loudness)
Num : 503
Avg : -43.3 dB(A)
Max : -11.0 dB(A)
Error Muting
Num : 64
Avg : 1.1 Samples
Max : 2 Samples
Skips
Num : 23
Avg : 6.8 Samples
Max : 12 Samples
Total Test Result
75.7 points (of 100.0 maximum)

Better with this disc but still not a very satisfactory. Again we see skipped samples.

- 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
LH-20A1S
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 from the LH-20A1S.

The drive does not appear to be very good when it comes to CD error correction.

 

Review Pages

1. Introduction
2. CD - DVD Reading
3. CD Error Correction
4. DVD Error Correction
5. CMC Magnetics CDR
6. Verbatim - CDR
7. Mitsubishi Kagaku - CDRW
8. DaTARIUS DVD Analyzer R 2x
9. TYG03
10. MCC 03RG20
11. TTH02
12. TTG02
13. ProdiscS05
14. ProdiscF01
15. OPTODISC R016
16. Infodisc-R20
17. CMC MAG AE1
18. YUDEN000 T03
19. MCC 004 (000)
20. RITEK R04
21. RICOHJPN R03 (004)
22. PRODISC R04 004
23. OPTODISC R16 000
24. OPTODISC OR8
25. DAXON AZ3 (000)
26. CMC MAG M01 000 (00)
27. RICOHJPN D00 001
28. MKM 003 000
29. MKM 03RD30
30. MKM A03 000
31. MKM 01RW6X01
32. Media List
33. Conclusion

 

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