Music problem

[Bob 31]

When I play music on my D2 everything is fine except it cuts off the last 3 second of each song and then will move to the next song. I don't think it's the sd card as I have tried it with 2 different cards with the same result. All of the music on my D2 was stored on my computer in WMA files. I have used several different media players all with the same results. Any ideas...