my dvd recorded needs one hour to burn a dvd.i have a NEC ND 3520AW and there is no way i can enable its DMA. From the control panel it always says PIO mode enabled and not ultra dma. I tried unistalled and reinstall the device and the controller but it didnt work. When i unistall it and reinstall, when i enter the windows xp it says ultra dma mode but when i start to copy a dvd with my burning software ( i used a lot of softwares) it goes back to pio mode. As a result one hour is needed for burning a dvd and one hour to copy a movie to the hard disk.
Try rolling back the IDE drivers to MS default ones, if you have already done this, ensure DMA mode is enabled in the system BIOS.If this fails, do you know which motherboard and chipset you have?