You need to mix your project to a stereo .wav file and just put it in you Nero program to burn. To do so make sure you don't have just one track selected. Edit>Select All, then go to File>Export>RIFF WAV. Save it somewhere will you wil be able to find it! Make sense?
Thanks 13th omen, it worked for one project but not another. The one it worked for has only one track. The one with multiple tracks did not work. It exported out not being a wave file. I followed the instructions perfectly. Any more tips?