[Q]Weird mixing mp3 music topic

I put songs in mp3 format in my n2 . The strangest thing happened. .. it played the right song for the first 3 or 2 seconds and then changes into another song, but it did not forward or skip the song its still the mp3 im playing. I dont know if I made any sense here.. but when I tried to play it in my laptop it was ok. But when I play it on my n2 its mixed up again... need help.

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