Need some HELP! (DVD Burning)

I have a sony dwu18a I changed the firmware to many different drives and all act the same. It will read a movie and a cd just fine. My problem is burning a dvd or cd. I have it plugged into my laptop through the pcmcia port (usb 2.0). It will not work through this. If I plug it into the 1.1 usb port it works but it takes about 4 or 5 hours to burn a 130 min movie this does not seem right to me. Do you guys think I got a bad pcmcia card? It seems to me that my computer is getting info from the drive but can not send any. When I burn a DVD it will read the DVD and after I put a blank in, it starts writing the lead in and freezes. any ideas???

Phil

Is DMA enabled?