Nero is an excellent package.
Are you taking example.mp3 files and buring them onto an audio cd. or as an audio type.
It may be jumpy if you are doing other things as well. Try burning on song, but untick the finalize cd, box so you can add to it. Select one mp3 file. use the wizard and create an audio cd, untick simulation and then let it create the cd. DO not do anything else with your pc while this is happening.
Let it finish.
Also what speed are you buring at? 8x is usually a good speed.