m3u and pls for shoutcast

[Thufir Hawat]

I use gnome-mplayer and right now have several text files with URL's to 
shoutcast streams, which I just append with .pls, which kinda works.

Can I see an example for m3u and pls with multiple URL's?  Can I add a 
descriptor?

Something like:

[descriptor1]
[http://...]


but I can't seem to get that working.  I'm not tied to either m3u or pls, 
they seem to overlap quite a bit.



thanks,

Thufir