I have Plex 40 write and it's been fine since i reinstalled my PC. Atfer doing so my buffer jumps up and down quite alot and when using nero it says buffer unrun avioded 123 times (before i reinstalled it used to say 1-3 times). i have have tried differnt ASPI drivers but still has not luck, becuase of this cd's are takes ages to burn. I have also run the CD on it's own IDE channel as i thought this may be the prob but still not look. Hope you ppl can help, thanks in advince for your advice