Freecom FX-50 DVD+/-RW 16X Burner - Page 15

CDSpeed/PlexTools Scans - Page 4

In order to test the writing quality and reliability 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-712A 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 be taken not as the absolute criteria of the burning quality, but as an indication level.

4X DVD-R Writing Speed

• Creation 4X DVD-R @ 4X

• Pony 4X DVD-R @ 4X

- Summary

Worst results came with Creation 4X DVD-R media. These results were not expected at this low speed since the lower the writing speed, the lower the PI/PO error values expected. Creation media could not even be read with the LiteON DVD-ROM reader. On the other hand, Pony 4X media (Ritek G04) reported very good results. According to this, the bad performance of the Creation media might be due to bad media and not because of the drive's writing strategy.