What album is this version of "Stairway to Heaven" on??!?

Question

Okay. I've heard a couple different versions of Stairway to Heaven live on different Zeppelin albums and none of them are the one which I seek. The one I'm looking for is the version in which Robert Plant says "Remember laughter?" right after the "and the forests will echo" line. Also, Plant says "Wait a minute!" right as Bonham comes in with the opening drums. It's not on the "The Song Remains the Same" album or the "BBC Sessions" album either. Also, radio stations tend to play this version. So please if someone could tell me the name of the album this version is on so I can go buy it and listen to the sheer awesomeness of this song it would be much appreciated! *Takes Breath*

Answer 1

"How The West Was Won"

Answer 2

Not every version of a song makes it to an album. Sometimes DJ's get special copies only for airplay. Or sometimes they have rare one-off recordings.