I have a tmobile samsung galaxy s2, i have a sandisk 8gb micro sd card in it, when i put mp3 albums on the sd card on on the phones memory itself some albums wont finish the entire mp3, itll play half then skip to the next song, itll do this for every song but only certiain albums, there seems to b no rhyme or reason, when i download mp3s using various apps they alway play thru all the way, this happens no matter what app i use to play the mp3's, what should i do about this, its very frustrating, i got the phone used and havent tried a factory reset yet, nor do i think it would help. Could someone please shed some light