Unregistered 1,

There have reports of the RIAA and record labels uploading gibberish or looped versions of popular tracks on Gnutella. Try opening it in Quicktime Player and see if it sounds the same. If the mp3 plays at all on itunes, it probably means your configuration is ok. Try downloading some others and see if they work.

Unregistered 2,

Go to Control panels=>File Exchange, find mp3 in the PC Suffix list, click change and click itunes in the file selector that appears. Double clicking mp3s in Limewire will now open them in itunes. You can also drag mp3s from the shared folder directly into the itunes window.