I have a Compaq Presario notebook with windows xp pro. I bought a PCMCIA to USB 2.0 card with an external 16 x dl benq DVD burner. I inserted the card drivers installed fine, plugged in burner drivers installed fine. When I checked in my device manager all my driver said they were working properly, but when I try to burn a DVD with Nero 6.6.06 or any other software it only burns at like 1x. The funny thing is if I start a program at the same time I am burning to jump my CPU level up to 100% then it burns fast. It seems like if my CPU is at 50% it burns at 4x if my CPU level is 100% it will burn at 8X. I tried the same card and same burner in a different notebook with same OS. It installed the driver on its own and worked fine. I updated my bios and reinstalled OS this makes know sense to anybody I asked about this issue. Any help would be great.