4. DVD error correction tests
2. CD/DVD reading tests
3. CD error correction tests
4. DVD error correction tests
5. CD/DVD testing platform - IQB Omni CD DVD Analyser by Quantized
6. CD-R Writing - Taiyo Yuden 48x CD-R
7. CD-R Writing- CMC Magnetics 48x CD-R
8. CD-RW Writing - Verbatim 32x CD-RW
9. DVD+R Writing - CMC MAG M01 @ 16x
10. DVD+R Writing - DAXON AZ3 @ 16x
11. DVD+R Writing - Verbatim MCC004 @ 16x
12. DVD+R Writing - PRODISC R05 @ 16x
13. DVD+R Writing - YUDEN T03 @ 22x
14. DVD-R Writing - CMC MAG AM3 @16x
15. DVD-R Writing - MCC03RG20 @16x
16. DVD-R Writing - PRODISC F02 @16x
17. DVD-R Writing - TTH02 @ 16x
18. DVD-R Writing - TYG03 @ 22x
19. DVD+R DL Writing - Verbatim MKM 003 @ 8x
20. DVD-R DL Writing - Verbatim MKM 03RD30 @ 8x
21. DVD+RW Writing - Verbatim MKMA03 @ 8x
22. DVD-RW Writing - Verbatim MKM 01RW6X01 @ 6x
23. DVD-RAM Writing - MXL16 @ 5x
24. DVD-RAM Writing - MXL22 @ 12x
25. DVD Writing quality summery, Overburning, Bitsetting
26. About LiteOn SmartErase feature
27. Final Thoughts
In the following tests, we examine the DVD reading capabilities of the drive (error correction) 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
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.
Nice reading, without any read errors or speed fluctations.
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.
We can see some speed fluctuations as the drive was not comfortable reading the disc.
- Dual Layer media
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.
A good read by the drive here, producing a smooth graph.
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.
Same as with the TDR-841, except that we can see here a few more (minor) speed fluctuations, as the drive was reading the disc.
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 iHAS422 failed to read the 'defective' disc and the process stopped a few mm before changing layers.
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.
Flawless reading here, producing a smooth and symmetrical speed graph.
Overall, the DVD error correction mechanisms are generally good, with an exception the "scratched" dual-layer DVD Video disc. Failure on the TDV-541 is not something rare among DVD drives, as many other drives that we recently tested failed to read the disc.