BenQ DW1600A DL Recorder - Page 18

- Writing Quality

In order to test the BenQ DW1600A DVD+R DL writing quality, we used not our usual readers (LiteOn LDW-811S/Plextor PX-712A) but the LiteOn SOHD-167T firmware 9S13, LiteOn XJ-HD165H firmware CH11, and LiteOn LTD-163 firmware GH5S. Similar results were reported from all three drives.

Using KProbe v2.1.0, we got a very good scan, indicating very good quality performance from the drive with the DL media recorded. Notice that the disc is not read at 3~8 CAV, but at 2.5X~5X CAV (DVD+R DL media).

Using the Plextor PX-712A and PlexTools, we were able to scan the DVD+R DL media with DVD-ROM booktype:

The reported PI error rate did not reach the 280 limit and no PO failures were reported, giving again an image of a very good quality burned disc.

We also tried using Nero CD-DVD Speed and its "Disc Quality" utility to ensure that the reported results are correct. Using two different LiteON drives we got the following results:

LiteOn LTD-163 firmware GH5S

LiteOn XJ-HD165H firmware CH11

Both drives gave worse scans than Kprobe and Plextools reported, and they both gave a quality score of 76. The disc was read without any problems for both layers.

- Compatibility Matrix

For our compatibility tests, we used the burned DVD+R DL discs with DVD-Video content ("Gladiator Movie - Special Edition" Disc1) and PowerDVD v5.0. The disc was also checked with several stand-alone DVD players.

We moved front and back around the layer change to ensure that the movie can be playback without any glitches or skips. The results are shown below: