Here's how I extracted the files.
1) Download EkszBox-ABX v1.6
here
2) Download Music Player EX
here
3) Unpack EkszBox-ABX v1.6 and then run the program.
4) Open the file (from within the EkszBox program) "streams_music_common_audio.fsb" in your Content\Sounds_Windows directory.
5) Extract the files. (the files you extracted will be in a folder named "streams_music_common_audio" in your Content/Sounds_Windows directory)
6) Unpack the Music Player EX and run the program
7) Open your extracted files (Drag and drop the files into the program.
Highlight all of the files and right click and select convert.
Now everything is done
. I don't think I can send you the files without getting in trouble.