ShoutCast or IceCast

To find out what stream you are using simply open up the stream URL in a browser and use your eyes. At the top of the page you will see Shoutcast or IceCast. In both cases its important that both are version 2. With Shoutcast you can see it at the top left of the page and with IceCast it is simply called IceCast2. Note that 99% of all stream services you find in Second Life are version 2.

If you dont have a stream yet and get to pick i would recommend ShoutCast as in combination with the standard DJ programs it seems to work best.