These are the known recordings of the show:
1) Video. Plenty of DVDs come from this source, as well as the Gypsy Eye silver bootleg version. Generally, the sound isn't great on this source, as we all know. The mix is brutal, for starters.
2) LP, called "Free In The Park". It's from an audience recording, but missing four songs, since it was squeezed onto a single LP. The sound isn't the greatest, but definitely listenable.
3) The audience recording used for the above LP. But the only complete version I've heard is worse-sounding than the LP.
For a couple years, I've had this sample, sourced from vinyl, from the audience recording, which undoubtedly is the best-sounding of them all: http://www.mediafire.com/?4chetgj9h9o
The question is... where is it from?
I received it from a Mexican collector who disappeared off the face of the earth after he promised to send me the 60 minute version on CD. He claimed it was from the "Free In The Park" LP, but it sounds much better than any version I've heard. The pitch was too slow, exactly like the LP (but I corrected it on the sample I shared), so maybe there is a very obscure version of this LP out there...?
Someone suggested to me that it's from a Japanese bootleg acetate, but I'm not so sure.
Also, a 1989 article about unreleased recordings in "Record Collector" magazine mentioned a Capitol Records transcription disc from Hyde Park. The show was apparently broadcast live on the radio, but no recording has seen the light of day. Has anyone heard anything about that?
And of course, there was the radio station who said they would play the 1976 concert at the exact time the 2005 Queen + Rodgers concert at Hyde Park would be performed... but it never happened. What would their source have been?
"The more generous you are with your music, the more it comes back to you." -- Dan Lampinskihttp://www.queenlive.ca