SONY DRU-710A Dual DVD±RW Recorder - Page 11

- Writing Performance

The SONY-DRU710A supports DVD-R/RW and DVD+R/RW/+R9 writing. The maximum supported speeds for DVD+R is 16X (6X~16 CAV), DVD-R is 8X (4~8 Z-CLV) and 4X CLV for DVD±RW media. Nero Burning Rom reported speeds are shown below. Notice that the drive burns CLV at 4X & 6X speeds for both DVD±R formats.

DVD+R @16X

Below we are able to see both 8X Z-CLV and P-CAV recording strategies in use on the SONY DRU-710A recorder. Depending on the inserted media, the drive adopts a different writing strategy that leads to lower writing times.

DVD+R @ 8X Z-CLV

DVD+R @ 8X P-CAV

As we said, the above strategy occurs with specific media, however there is the option to permanently change this with Codeguys "OmniPatcher for LiteOn DVD Writers" :-)

DVD-R @ 8X

- Burning Tests

We burned 4315MB of data on various DVD±R, DVD±RW media. After checking the supported media list, we noticed that almost all 4X rated media could burn only at 4X, while most 8X rated media at 8X. For the 'normal' recording tests we used the 8X rated media, burned at 8X for the DVD±R formats.

The best recording time for the DVD+R format came (as was expected) with CMC 16X media at 5:44mins.

Below are the supported media lists for the drive, and all the burning results for the various media types used.

• DVD+R/RW Media

• DVD-R/RW Media

- DVD Overburning Tests

In order to test the drive's DVD overburning capabilities, we used two media types, one 4X DVD-R from Traxdata and one 8X DVD+R from Plextor. As you can see from the screenshot below, the drive refused to start the test with DVD-R media,

while with DVD+R media, it started but when it reached 4.38GB, stopped with an error message.

- DVD+MRW Tests

The drive does not support this feature.