re: Robert Plant tells Jimmy Page "have a good rest"

Several years ago when Plant was working with Allison Krauss, one of the music HD channels showed a performance with an interview at the end. During that interview, Plant seemed like the ring leader of the reunion tour idea. He sounded genuinely excited about it. I remember this vividly bc it got me excited too. But now something has happened to cause bad blood and it's to the point of bitterness according to the Rolling Stone article. Maybe something happened at the reunion show they did in 2007 Or maybe Plant realized he couldn't do it justice any more. Whatever his deal is, it seems irreparable.

Has anyone seen or heard the Celebration Day performance? How'd they sound?