Unfortunately, I'm no technical genius, so I have no idea if or how your recording could be rescued.
But I'm definitely interested in your "bits"!
Could you upload "Rat within the grain" and "Is that it, my friend" somewhere?!? That would be awesome.
But I still can't believe that there were only two out of 4000 people trying to record the show. C'mon, tapers, where are you hiding?!?