LiteOn LDW-811S DVD±RW recorder - Page 12

DVD Recording Tests

- Writing Performance

The LiteOn LDW-811s supports DVD-R/RW and DVD+R/RW writing. The maximum supported speed for DVD+R is 8x (6x~8x Z-CLV), 4x CLV for DVD-R, 4x CLV for DVD+RW and 2x CLV for DVD-RW media.

Currently, only a few 8x certified DVD+R media are available on the market. The supported 8x DVD+R media came from Mitsubishi Chemicals, CMC Magnetics, Ricoh and Taiyo Yuden.

8x DVD+R

A 8x DVD+R disc from Mitsubishi-Kagaku was used to check the 8x writing strategy of the drive. The software used was Nero CDSpeed, and its "create disc" function.

The drive started writing at 6.12x, maintaining this speed until the 1.25 GB address mark on the disc, where the speed changed to just a bit over 8x. Overall average speed was 7.50.

The test was repeated with Mitsubishi 4x DVD-R and 4x DVD+RW media, and Fuji 2x DVD-RW media. The end results, presented in consecutive graphs further below, was a near perfect straight line on each occasion.

Below is a CDSpeed screenshot with a 8x DVD+R disc from Mitsubishi.

4x DVD-R

Below is a screenshot of CDspeed writing test with a 4x DVD+RW disc from Mitsubishi:

4x DVD+RW

2x DVD-RW

- Burning Tests

The best recording times are illustrated in the following table after burning 4315MB of data on various DVD±R, DVD±RW media, using the maximum allowed writing speed for each disc. For comparison, we also include the writing times for the Optorite DD0401 and CyberDrive DX082D drives. The LiteOn drive returned some very good times.

Mitsubishi 8x DVD+R media was burned at 8x and gave the best writing time (8:25 min). The drive finished the same writing task with Ricoh 4x DVD+RW discs in 13:45 min, a fast performance for 4x DVD+RW recording. With DVD-R media the time taken was 14.32 mins while for DVD-RW the time was 28.11 mins.

The following screenshot was taken from Nero, after successful burnings with Mitsubishi 8x DVD+R, Taiyo Yuden 4x DVD+R, and Ricoh 4x DVD+RW media. The amount of data is the same for all the tests.

• Mitshubishi Kagaku 8x DVD+R (8x recording)

• FUJI 4x DVD-R

• MCC 4x DVD+RW

The table above presents the writing speeds of the drive for the various media formats.

- Packet Writing Tests