what program do you use?
You can usually just save as: then pick a streamable version(rm,wav, or that microsoft one can't remember the name right now)
or export audio as: then pick what you want
If worst comes to worst, do this! Go to sonicfoundy's website!
ACIDPLANET.com and download their free version of ACID
after you install the program load up your track and then eport audio! You can even store tracks on there and people will rate them...its pretty cool!
If you got some time you can check out my page over there
http://www.acidplanet.com/Lounge/ArtistDetail.asp?ArtistID=23851
Thanks and don't hesitate to ask any more q's . ecspecially if I didn't even come close to answering your question!...PEACE!!!