DVD Xcopy and RecordNow Max

[cactus]

I just upgraded to Windows XP and was using PXengine with Win98 for RecordNow Max. I just tried DVD Xcopy and it worked fine, but when I tried RecordNow Max for something else, it comes up with an error "Px Engine Error: Command 28 reading from disc" Any ideas? I looked under help to disable PX engine, but I couldn't find anything. Neither Nero, RecordNow Max, or DVD Xcopy work now. HELP! I had everything working fine just yesterday!