Perhaps if you go to the apple icon in the menu bar, then to control panels, then to internet in the advanced section and select file maping you can solve your problem. All you have to do is to select all .mp3, .mpg3 and all music extensions you have in the list and change the application program that executes the songs. Sorry if my english is no good but is not my language, I hope you can find what I say useful, good luck