etree.org

etree.org (the torrent tracker) is a webpage for trading recordings of shows which the musicians allow the trading of recordings. I'm surprised I didn't mention it earlier as I had known about it and assumed that everyone into live shows knows about it.

No registration required for just downloading torrents. Note that almost all of the files available from bt.etree.org are not in mp3 format, but in shn or flac formats. The use of lossy formats is heavily discouraged on etree.org. For playing in iTunes or Winamp, either you will need to find a plugin or convert to mp3 or wav.