I just bought a LaCie DVDÂ±RW USB2.0 based on the NEC ND-3500AG chipset. I plugged it on my computer running on Windows 2000 SP4. It detects the drive and it everything seems nice.
I installed the software provided with the drive (Roxio Easy Media Creator 7... it looks like a piece of crap, but whatever), I started it, it took a really long time to load, and it finally didn't worked (pressed the Burn Button and nothing happens). I tried their Drag-to-disc utility, and it says that the media is read-only (it's a Brand-new Maxell DVD+RW).
I tried to update my USB2.0 drivers, and I upgraded to the 2.18 firmware for the drive.
I hope you'll be able to help