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Pioneer DVR-111DBK

Apr 12,2006 0

4. DVD Error Correction

 

Review Pages

1. Introduction
2. Reading Tests
3. CD Error Correction
4. DVD Error Correction
5. Protected Discs
6. CD Recording Tests
7. CD Writing Quality - Plextools
8. CD Writing Quality - Clover System
9. DVD Writing Tests
10. DVD Writing Quality - Page 1
11. DVD Writing Quality - Page 2
12. DVD Writing Quality - Page 3
13. DVD Writing Quality - Page 4
14. DVD Writing Quality - Page 5
15. DVD Writing Quality - Page 6
16. DVD Writing Quality - Page 7
17. DVD Writing Quality - Almedio
18. DVDR DL - Page 1
19. DVDR DL - Page 2
20. SA300 vs DVR-111DBK - Page 1
21. SA300 vs DVR-111DBK - Page 2
22. SA300 vs DVR-111DBK - Page 3
23. SA300 vs DVR-111DBK - Page 4
24. Booktype Setting
25. Conclusion

 

In the following tests, we examine the DVD reading capabilities of the drive with scratched / defective DVD media. For the tests, we used CDVD Benchmark and Nero CDSpeed. The reference test media comes from ALMEDIO.

- Single Layer media

ABEX TDR-821

This is a single sided, single layer DVD-ROM with a 4.7GB capacity, and its surface has an artificial scratch of dimensions varying from 0.4 to 3.0 mm.

The following transfer rate picture comes from the CDVD Benchmark v1.21 transfer rate test.

The Pioneer drive managed to complete this error correction test without any problems being reported. Speed reached the maximum 16X at the end of reading. Over the last part of the defective area, the speed dropped momentarily.

ABEX TDR-825

This is also a single sided, single layer DVD-ROM of 4.7GB capacity. The data structure of the disc is exactly the same as that of the TDR-821, with the difference that there are no scratches on it but instead, defective areas of dimensions ranging from 0.5 to 1.1 mm.

There are also fingerprints sized between 65 and 75 micrometers.

Similar error-free behaviour to the previous test disc, with the drive reaching its maximum reading speed of 16X but again, a slight hiccup over the last portion of the defective area.

- Dual Layer media

ABEX TDR-841

This is an 8.5GB dual layer, single sided DVD-ROM disc with artificial scratches of dimensions ranging from 0.4 to 3.0mm, on both layers.

No errors here as well. Note also that the reading speed in this case goes up, above 12X, which is the maximum speed for DL media.

ABEX TDR-845

The disc is a single sided, dual layer DVD-ROM disc with a capacity of 8.5GB. The only difference between the TDR-845 and the TDR-841 is that the first includes defective areas and fingerprints.

The dimensions of the defective areas range from 0.5 to 1.1 mm and the fingerprints are sized from 65 to 75 micrometers.

Once more, maximum reading speed was achieved and the test finished successfully.
ABEX TDV-541

The TDV-541 is a single sided, dual layer DVD-VIDEO disc, with a capacity of 8.5GB.The disc is based upon the TDV-540 series which is designed for inspection and adjustment of DVD-VIDEO players. The disc checks the layer switch operation from layer 0 to layer 1 and also includes test pictures and test signals for DVD sound files.

The current TDV-541 also checks the error correcting capabilities of the drive and includes scratches from 0.4 to 3.0 mm.

The drive managed to complete its reading of this test media, but with a severe cost in speed. A major drop in reading speed occurred after the layer change and in general, the drive did not do a good job reading this disc.

ABEX TDV-545

The TDV-545 disc is based on the TDV-540 series. It is a single sided, dual layer DVD-VIDEO disc with a capacity of 8.5GB.

The TDV-545 includes artificial black dots on the data surface, sized from 0.4 to 1.0 mm. It also has 65 - 75 micrometer fingerprints.

Excellent reading from the DVR-111DBK drive. The dots and fingerprints were not a problem for the drive's error correction mechanism.

- Summary

Overall good error correction mechanism, capable of reading over most defective areas, even though some drops in speed may occur from time to time.

 

Review Pages

1. Introduction
2. Reading Tests
3. CD Error Correction
4. DVD Error Correction
5. Protected Discs
6. CD Recording Tests
7. CD Writing Quality - Plextools
8. CD Writing Quality - Clover System
9. DVD Writing Tests
10. DVD Writing Quality - Page 1
11. DVD Writing Quality - Page 2
12. DVD Writing Quality - Page 3
13. DVD Writing Quality - Page 4
14. DVD Writing Quality - Page 5
15. DVD Writing Quality - Page 6
16. DVD Writing Quality - Page 7
17. DVD Writing Quality - Almedio
18. DVDR DL - Page 1
19. DVDR DL - Page 2
20. SA300 vs DVR-111DBK - Page 1
21. SA300 vs DVR-111DBK - Page 2
22. SA300 vs DVR-111DBK - Page 3
23. SA300 vs DVR-111DBK - Page 4
24. Booktype Setting
25. Conclusion

 

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