I have a problem and was looking to update the driver until I read this thread. My problem occurs when using my sony DVD RW DW-Q520A in my laptop with XP. It has started 'locking up' any software programs using it. Symptoms are when playing a DVD in WinDVD if I press "pause", leave the laptop for a few minutes, and then press play again, the drive spins up to speed, then spins down, pauses, then spins up etc and this continues indefinitely. I face similar problems with other programs - just now trying to burn a DVD with Roxio Disk Copy (which used to work fine) and I've also had problems playing in Windows Media Player - basically all these problems involve the user software stopping (freezing) to one degree or another, and often with the drive spinning up and down as just described. So the problem appears to be due to the drive, not any user software. Can you help?