Silver Cd Player CD Player ?

CD Player ? - silver cd player

I bought a Panasonic CD player a few years ago. After a month or two when I get a CD and play in the press, the screen shows the track number, but not yet show the duration of the songs played, and play something. Sometimes appear "F 15" on the screen. Please help me solve this problem.

Sun CD looks like this:
http://i.pricerunner.com/prod/7_6_3_12_5 ...