Share some tunes in LimeWire (mp3, m4a, aiff, wav and m1a are supported), launch iTunes on an arbitrarily computer in your LAN (in most cases the same machine where LimeWire is running but you could use different machines if you want). In iTunes you should see a new Playlist right next to the Music Store Playlist pretty much on the top (LOTR's LimeWire Tunes). Click on it and... Or do you want to know the technical details?