Windows media error. please help

recently i have been getting this while i am trying to burn a cd.

“Windows Media Player cannot play the file. If the file is on another computer, verify that you are connected to the network. If you typed a path, verify that it is correct. If the problem persists, the server might not be available.”

anyone know how to fix it
thanks

maybe this help http://www.microsoft.com/windows/windowsmedia/player/9series/playererrors.aspx