In order to test the writing quality and readability of the burned media, we used two readers equipped 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 oversped the reading capabilities of the LiteON SOHD-167T, such drops are expected, especially near the outer area of the disc.

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

16X DVD-R Writing Speed

- Mitsubishi Chemicals 16X DVD-R @ 16X

- ProdiscF02 16X DVD-R @ 16X

- Optodisc 16X DVD-R @ 16X

- BenQ 16X DVD-R @ 16X

- Traxdata 16X DVD-R @ 16X

- Philips 16X DVD-R @ 16X

- ProdiscS05 16X DVD-R @ 16X

- TDK 8X DVD-R @ 16X

- Maxell 8X DVD-R @ 16X

- Summary

With DVD-R media, the scene is very different from +R at 16X. The reported error levels in Plextools were low in almost all cases, but our LiteOn reader had problems with specific media, while in some cases, it failed to complete the reading. To make sure that it was not our LiteOn drive at fault, we repeated the reading procedure with a second LiteOn drive, but the results were the same. Nevertheless, this is something that we had also seen with the ND-4551A.