Queen DVD's from the 70s!

I am forever searching high and low...
But i haven't found any DVD's from any concerts from the 70s. I'm espessially looking for a DVD called "An evening with Queen" that contains songs from Hammersmith, Hyde Park and the Rainbow.

This is how it looks like:
http://tommygunvideo.ning.com/photo/609533:Photo:48

I would be so happy if anyone could help find a site were you could get this DVD or any other!

Take a look at the Sharing The Music Announce forum :)
Also read the thread about the Queen hub in the same forum. The hub is always full of such shares.

A nice version of Hammy 75 is being shared right now, even when with crappy upload speed ;)