…many of the sound functions are not working in the GE. Have you considered Pygame for sound? I have a thread with a demo in the resources section. The only bad thing about it is that there are problems with Linux. Other than that, I’ve had good results with .ogg and Pygame (the music in the demo is not high quality).
This may not be part of the subject but I think that site may be very helpful for people to learn python, in fact if I had that open on my computer with Blender, I could start writing my own scripts:)