Really? I thought people would replace every song in the game and it be just fine....hmmm but it does sound logical. OK thanks
Edit: Ok I removed all the songs I had on my SD card and put back in only the ones I really wanted....I now have more than half of what I used to and now songs that were working no longer will!
I think my problem transcends having too much music..............
And now to be sure I put one song on Brawl (the one I really wanted to work) and it still won't play all the way through...