BenQ DW1620A DL Recorder - Page 14

KProbe/PlexTools Scans - Page 3

In the following screenshots you can see the PI/PIF scans for the burned DVD±R media . The software we used for all measurements is KProbe v2.4.0, and the reader is the LiteOn LDW-811S with "HS0Q patched" firmware, being able to read DVD±R/RW media up to 8X CAV. All scans have been performed at 8X with PI/PIF Sum8. In addition, all discs have been scanned with the PX-712A (v1.04 firmware) using PlexTools v2.16 for comparison levels.

Comparing the KProbe and PlexTools scans we can see major differences in the reported PI/PIF error rates. The main explanation is that we have two different readers, with different pickup/chipset combinations, scanning at different reading speeds (8X CAV for KProbe, 2X CLV for PlexTools). It's interesting to see the disc scanned at low & high speeds, since when the error rate increases at a specific disc area, it should appear in both scans...else it would be, perhaps, a reading glitch of the tested reader.

Note: PI/PIF errors only give us a quick look at the error rate of the burned media. Those scans should be taken not as the absolute criteria of the burning quality but as an indication level.

8X DVD-R Writing Speed

• CMC Magnetics 8X DVD-R @ 8X

Plextools report read error!

• DataWrite 8X DVD-R @ 8X

Plextools report read error!

• Intenso 8X DVD-R @ 8X

• TraxData 8X DVD-R @ 8X

• Verbatim 8X DVD-R @ 8X

- Summary

The writing quality at 8X seems to have serious problems. Two burned media were un-readable with the PX-712A drive, the 811S gave very high PI error rates, while the Verbatim 8X -R media results were very good.