NEC ND-4571A

Review Pages

1. Introduction
2. CD - DVD Reading
3. CD Error Correction Tests
4. DVD Error Correction
5. Audio - Data Protection Tests
6. CD Burning Tests
7. CD Writing Quality - PlexTools
8. CD Writing Quality - Clover Systems
9. DVD Writing Times
10. 16x DVD+R Writing Quality Tests
11. 8x DVD+R Writing Quality Tests
12. 16x DVD-R Writing Quality Tests
13. 8x DVD-R Writing Quality Tests
14. DVDRW Writing Quality Tests
15. DVD Writing Quality Tests - Almedio
16. DVDR DL Tests
17. SA300 Correlation Tests - Page 1
18. SA300 Correlation Tests - Page 2
19. SA300 Correlation Tests - Page 3
20. SA300 Correlation Tests - Page 4
21. BitSetting Tests
22. Final Thoughts

In order to test the writing quality and readability of the burned media we used two readers with two software applications:

The LiteON SOHD-167T with patched firmware being able to read DVD5 up to 16X CAV and DVD9 up to 10X CAV. For the transfer rate tests we used the latest Nero CDSpeed version.
The Plextor PX-716A with the latest available firmware. For scanning the disc, we used the latest PlexTools version at 2X CLV reading speed, BURST mode, with middle accuracy.

In general, a "perfect" disc should have a smooth reading curve, very low PIE/POE and zero (0) POF error rates. Most times however, even though a disc has very low PIE/POE error rates, the reading curve may not be smooth containing dropoffs. Due to the fact that we overspeed the reading capabilities of the LiteON SOHD-167T, such drops are expected, especially near the outer area of the disc.

The measurements below should be taken not as the absolute criteria of the burning quality, but as an indication level.

8X DVD-R Writing Speed

- Bulkpaq 8X DVD-R @ 8X