Just got this disc the other day ($18 at Costco), it's a 2-disc set, has Dolby TrueHD 5.1 audio. First of all, the audio quality is excellent - as you'd expect with this codec. If you're a Gilmour/Pink Floyd fan, this is pretty good stuff, although I'm personally a little a little lukewarm on some of his solo efforts. David Crosby and Graham Nash do nicely in backup vocals, and the video production is first-rate.
Overall, this is a pretty good value in a concert disc; hopefully the Blu-Ray format will see more of these kinds of concerts.