Am new to the forum and was hoping to get some input on the issue I am facing. There is not a whole lot of info available on this drive as yet, I guess. I recently bought the NEC ND-3550A and connected it to my laptop (Acer Travelmate series, Intel Centrino 1.5GHz, 512MB, 40GB) using the USB2.0 IDE adapter from Cables to Go. I am using Verbatim 1-16X DVD-R discs and DVD Decrypter(22.214.171.124 with Write Speed set to MAX) as the burning software. The first time I hooked up this drive to my laptop for burning, the buffer levels jumped around quite erratically for a few moments before the burning speed settled to 4X with buffer levels being maintianed constant at more than 95%. Since then it always consistently burns at 4X (no buffer levels jumping around). I have the DMA enabled on the IDE channels. Could anyone tell me where the bottleneck is. Why doesnt it burn at higher speeds. DVD decrypter does recognize that the media is capable of 16X. IS it the IDE to USB interface? or is it something else?