Nano 6gig mutes duting playback and gives song info.

Hi

My nano plays song just fine for a couple fo minutes, then the song goes mute and this voices gives me the song name and artist, then the song continues playing again. Sometime only once during a song but sometimes it just keeps on reaping. Then after reapeting the song info 3 or 4 times the nano stop playing and i have to restart.

Thanks