I'm kind of weird about Pink Floyd recordings. While I own both vinyl and CD versions, being as I'm old enough, I remember going to their concerts before they were all that. To state the obvious, the concerts were always different and what I tend to look for on the web are recordings, sometimes bootleg, of their live performances. For example, you can listen and download various of their concerts from the KingBiscuit site. They're not perfect, the bitrate could be better, but at least for me, they're real. I'm still looking around for a copy of their performance at Carnegie Hall that I attended back in the early 70's. There I was waiting for Atom Heart Mother and what I heard was DSOTM before it make its way to vinyl. Nice concert.
"I've found that when you want to know the truth about someone that someone is probably the last person you should ask." - Gregory House