just for your information...
they simply picked up the audio from a few existing bootlegs and put it online like that.
they didn't even bother to find the best available versions of those recordings, which are audience recordings too.
how i know it?
i do collect PF unofficial live recordings since the 80s and just have better versions of them and of hundreds more gigs.
surprisingly low quality choice by the band... basicly, they are bootlegging the bootleggers.