http://www.cdrlabs.com/reviews/index.php?reviewid=200

Highs:

Writes to DVD+R and DVD+RW media at 4x
One of the first DVD writers to offer 40x CD-R and 24x CD-RW writing speeds
Reads DVD-ROM's at 12x
Very good data transfer speeds with pressed and CD-R media
Good DAE speeds
Low seek times
Features Lite-On's SMART-BURN, SMART-X and VAS technologies
Good selection of writing and rewriting speeds
Supports 99 minute media
Includes software from Sonic and CyberLink
Supports UDMA 33
Affordably priced
Lows:
Higher than normal CPU usage when reading DVD's
Only a 2048KB buffer
Doesn't support the Mt. Rainier format
Documentation could be better