Maybe there's a codec for it?
It installed mp4 codec for Windows Media Player 9 ! thanks!give it a try, it beats trying to install codecs that may mess up the os, and you can always uninstall if you do not like it, I use the standard version since I am not cognizant of all the audio adjustments that can be made.
giving 'like' seems to be the only way to acknowledge gratitude and make other people know what exactly helped you . Never forget to give those !