I found a good mp3 editing software that lets me edit any mp3 i have on my computer and add it to my Q. The only thing is that you have to export as a WAV file, but no sound quality is sacrificed, but if it is, it is BARELY noticeable.
Here is the link to the download.
RHStevenson.com/Q Motorola Q Downloads
Just click on Audacity and it will downlad and you may begin to shred your mp3's.