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4x DVD+RW Roundup Vol.2 (AOpen DRW4410 & Ricoh MP5240A)

Oct 15,2003 0

8. DVD Error Correction Tests - AOpen DRW4410

 

Review Pages

1. Package, Installation, Ricoh MP5240A
2. Package, Installation, AOpen DRW4410
3. Data CD Reading Tests
4. Error Correction Tests - Ricoh MP5240A
5. Error Correction Tests - AOpen DRW4410
6. DVD Reading Tests
7. DVD Error Correction Tests - Ricoh MP5240A
8. DVD Error Correction Tests - AOpen DRW4410
9. Data Protected Disc Tests
10. DAE Tests
11. CD-R/RW Recording Tests
12. Writing Quality Tests - Ricoh MP5240A
13. Writing Quality Tests - AOpen DRW4410
14. DVD Recording Tests
15. PI/PO measurements - Ricoh MP5240A
16. PI/PO measurements - AOpen DRW4410
17. Conclusion

 

Ricoh MP5240A Vs AOpen DRW4410 - Page 8

DVD Error Correction Tests

AOpen DRW4410

In the following tests we examined the DVD reading capabilities of AOpen DRW 4410 drive with scratched / defected DVD media. For the tests we used CDVD Benchmark and Nero CDSpeed . The reference test media come 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 scratched areas did not seems to be a problem for Aopen DRW 4410. The DVD-ROM disc was read at 8x CAV.

ABEX TDR-825

This is also a single sided, single layer DVD-ROM of a 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 defected areas of dimensions ranging from 0.5 to 1.1 mm. There are also fingerprints sized between 65 and 75 micrometers.

The AOpen drive finished the task fast without slowing down the speed. No errors were reported.

- Dual Layer media

ABEX TDR-841

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

The differences between the Abex TDR-821 and the TDR-841 disc is that the last is a dual layer DVD-ROM. Following the good performance with the scratched single layer disc, the Aopen drive finished the test successfully and read both layers at the maximum 8x speed.

ABEX TDR-845

The disc is a single sided, dual layer DVD-ROM disc of a capacity of 8.5GB. The only difference between the TDR-845 and the TDR-841 is that the first includes defected areas and fingerprints. The dimensions of the defected areas range from 0.5 to 1.1 mm and the fingerprints are sized from 65 to 75 micro meters.

Continuing the good performance, the drive read the disc correctly.

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 discs check the layer switch operation from layer 0 to layer 1 and also include test pictures and test signals for DVD sound files. The current TDV-541 checks also the error correcting capabilities of the drive and includes scratches from 0.4 to 3.0 mm.

This time the drive refused to read the disc contents of the second layer.

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 has also 65 - 75 micro meters fingerprints.

 

 

 

 

Review Pages

1. Package, Installation, Ricoh MP5240A
2. Package, Installation, AOpen DRW4410
3. Data CD Reading Tests
4. Error Correction Tests - Ricoh MP5240A
5. Error Correction Tests - AOpen DRW4410
6. DVD Reading Tests
7. DVD Error Correction Tests - Ricoh MP5240A
8. DVD Error Correction Tests - AOpen DRW4410
9. Data Protected Disc Tests
10. DAE Tests
11. CD-R/RW Recording Tests
12. Writing Quality Tests - Ricoh MP5240A
13. Writing Quality Tests - AOpen DRW4410
14. DVD Recording Tests
15. PI/PO measurements - Ricoh MP5240A
16. PI/PO measurements - AOpen DRW4410
17. Conclusion

 

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