Hello there i am new just registered today and i desperatly need some help. Just bought a sony DRU-720A writer and it worked well to begin with then it started to go slow taking a long time to burn dvds (like hours). Then i started getting errors when the dvd was burning saying there wasn't enough virtual memory, but now i have wasted loads of dvd discs because of a transcoding error. Does any one have an idea what could be causing these problems and/or how to fix them. thanks for time