In this link, is a program that'll allow you to play wavs forward, reverse, scratching (in real time), volume, etc etc etc.

http://www.vbforums.com/showpost.php...8&postcount=45

For mp3's, here is my DirectShow engine )volume control is part of the module too:

http://www.vbforums.com/attachment.p...chmentid=39229

Also made another example in my DirectShow engine that allows 2 or more mp3s to play at the same time.

http://www.vbforums.com/attachment.p...chmentid=39230