All shows are on cdr, all are in audio format. If you want audio and have shn or flac to trade, I'm okay with that. I just don't save my discs in that format. There is no source or quality information included. If the quality is subpar, I'll let you know. If you don't like the quality of a show, you can always return it to me for another.  Please do not send me shows on Memorex or Imation discs.  I'll do blind trades with anyone for any shows I don't have by the following artists: Genesis, Gordon Lightfoot, Bruce Springsteen, David Nelson Band and its offshoots, pre-1980 Stones.