on 20 March 2014
From the back of the CD Packaging:
"RARE LIVE RECORDINGS - ONLY FOR COLLECTORS
The music on this CD comes from non-professional private tapes and its technical sound quality is not up to today's standards. However, it is released because of the importance of the musicians involved and of its high historical value. Every effort has been made to improve the sound quality through advanced restoration technologies."
It is poor quality sound, so do think twice.