Summary: This burner is pretty nice. It burns at 18x on compatible16x +R/-R. I've reached 18.1x write speed with Sony DVD-R'sbut only 16.1x with Memorex DVD-R's. I guess they have to becompatible. That's the only downside to the Write.The Read, however, could use some help. A single layer4.7GB DVD+-R will read at a max of 12x and a dual-layereddisc maxes out at around 8x.