DVD+R/-R Double Layer writing performance and quality:

The Lite-On LH-20A1S supports the DVD+R DL/-R DL standard for writing Double Layer/Dual Layer discs with a size around 8.5 GB at a writing speed of 8x.

For these tests we pre-authored several video clips into an image file and burned the resulting image in Nero Burning Rom. We then used the Lite-On LH-20A1P along with KProbe to test the discs quality; we then finally ran a read-back test on our Optiarc AD-7173A using Nero CD-Speed.

DVD+R DL:

An excellent result

DVD-R DL:

The Lite-On LH-20A1S had big problems with this disc, the disc was un-readable, a very poor result.

We tried a second disc.

Once again the disc was un-readable.

PI errors are high but within specification, PIF levels are low however, our read-back test drive once again had problems reading the disc. The result is ok but could be improved.

Summary:

The Lite-On LH-20A1S burned our test DVD+DL with excellent quality. DVD-R DL quality was another matter. The 8x DVD-R DL media tests failed and our 4x DVD-R DL burn also showed some problems.

Let’s head on to the next page and our DVD-0RAM writing tests….