Most all trading is done with digital files, CD-r audio can be done.
I can host ftp/sftp the latter is better. snail mail is ok.

Not worried to much on media type, as long as my system can read
the disc.

No mp3 source trades, I am working on creating a fft image of all
shows so you can be confident there is no MP3 in the source tree.

Roger Postema