So I got one, anyone who doesn't should because its totally worth it, around $AUD 400 and it records and is amazing, but i got one problem right,

Is it possible to record the rhythm arrangement into an mp3 and then use it as a song?

I can't find out how to do that..

im having a bit of bother with my micro br, i was wondering if you could help me :/
ive tried to put mp3 backing tracks onto the thing, but when i go to play them and then record it says "cannot play, file format not recognised" or words to that effect.

any suggestions?
not sure if i can help you with your problem :/
Top lel.