Hi,
Aspi probably won't solve your problem, also, that is not needed any more. As Datawrite and Ridisc are not known as makers of quality discs, you should try better media at first.
Nero had some issues with audio CDs made from mp3 files (don't know, if they had fixed that, so see if installing the latest version from nero.com will help), so you may try other software. Burrrn is often recommended for that job.
Michael