My few reservations about the DVD focus on choice of material - e.g. Tricia Yearwood is a great singer but her solo song is not a great choice. I didn't like Tammy Wynette's version of the great Everley Brothers balad Crying in the Rain (it badly needed a harmony vocal - wonder why she didn't have that when so many great voices around).
Mary Chapin Carpenter is awesome. Pam Tillis song 'call me Cleopatra - queen of denial' is a gem. Emylou Harris also great. And the atmosphere - especially the bond between the performers at the event - is very moving indeed.
Sound quality for the live performance is of course superb, as is picture quality. The arhcive documentary material is inevitably of mixed quality, but well edited - kind of Discovery Channel style.
A great DVD.