I absolutely am so stuck and frustrated. DMA is turned on. I've tried all kinds of media. I have two DVD burners. An NEC 3500A and a BENQ1620 in two external enclosures. The NEC is an OEM drive with a Plumax External USB 2.0 enclosure. The BENQ1620 was purchased as Pacific Digital External DVD burner (IT SAYS 16X ALL OVER THE BOX!). Both drives are rated at 16x burn. Neither drive will burn over 4x. I have tried my desktop computer, and I have tried my laptop. My desktop is a little old, but it's not the bottleneck. It's an Athlon XP 2500+ with 1.5gb of RAM. My laptop is an HP dv2000t Intel Core Duo with 2gb RAM. I have tried both enclosures and both drives on BOTH computers. I have swapped the drives in the enclosures and tried on both computers (I tried all four combos). I've used DVD Decrypter and NERO and they all max out at 4x. It's absolutely bizarre. I've tried all kinds of media. Nero Burst Speed is 7MB/sec. The Create Disc results are here: Someone please let me know how I can fix this. I am so, so frustrated. Thanks!