Media player not working

[N_C]

Hello,
my media player used to work well before, but since 2 months its not playing any music in the playlist, if i put a song it will play but then i can't put it on pause and no further songs can be played...
plz help

 

[ais _babe]

am using windows xp and i can't play music using media player and can't burn cd as well