I've been looking forward to seeing the bonus features on this disc for a long time. I Hear the DVD will include a Zep radio interview conducted by Cameron "Almost Famous" Crowe.
It's good to see "The Song Remains The Same" will finally be digitally remastered and mixed in dts 5.1 surround. For those people who can't see Zep at the tribute gig at the 02 Centre, I guess this will probably make for the perfect Christmas present.
Regarding your comment about Peter Grant being a bearded horror of all concert promoters, he was actually Led Zeppelin's manager. I wouldn't go as far to say that he was a horror. He was the kind of manager who didn't take any crap from record companies or concert promoters. Peter stood up for the band and made them who they are - a legendary rock and roll band. Peter Grant was a genius, and he was one of the only few rock band managers who revolutionized rock management.
You can read more details about the DVD on the following UK press site web link -
http://www.noblepr.co.uk/Press_Releases/warner/led_zeppelin_song_remains.htm
Led Zeppelin are still rockin' (and the rest is history).