dot M3U
"Generally known as a Winamp Playlist file, this format has been adopted by a wide variety of MP3 players. You can also use this file for redirection on a website."
for the benefit of those who, like me, have never heard of this file extension...
My apologies pb&j it had been a while since I had played with that format. To work in firefox I would have to use type="audio/mpeg" for it to work. it was meant mainly for family and friends who use IE.
An alternative and better way is to use flash. Here is a site that explains both. http://www.boutell.com/newfaq/creating/playlist.html
Hope it helps Cheryl.