Uninstall IE 7 and use firefox
Notice from twitch:
You're relatively new here, so I'll go easy on you. Don't presume that other members have not tried Firefox or any other alternative. Many web developers, like myself, try to use various browsers to test the cross-browser support of our sites.
what i would do is, download k-lite mega codec pack and install it, then just open that file with WMP and see if it can play... usually if the original format was a audio file, it doesn't really matter what extension it is!Reply and tell me the results!