All fine and well, but I'm 99% sure that the miniport issue is unrelated to the cdrw issue.
-Is the drive appearing in device manager? If so, what error message are you getting?
-Assuming the drive connected via usb, do you have an external power source connected? Do other usb device work properly?
-Have you tried flashing the bios to latest version?
-Latest chipset drivers installed?
-Can you try the drive on another computer?