The review by Robert Hedges here rather hits the nail on the head in my book so I won't rehash - great musicianship and a lot of fun to watch. Not having seen the VHS version, can't comment on the relative sound quality, but it's very good on Blue Ray. The photography is good qualtiy for a stage performance - multiple camera angles and the editing keeps things moving along. The problem with the visual qualtiy seems to be the lighting that shifts from bright white spot to blue to red to other colors; this change intensity of light must have been a cameraman's nightmare f-stop wise. Quite often there is a lack of fill lights, so when the high-beam white spot is on illuminated areas are washed out in places whilst non-illuminated areas are very dark or simply black. However, this in no way - for me - detracted from the performance; gave it a bit of a psychadelic look at times! Aside from his incredible guitar playing, what I found most interesting about this performance was Mark's vocal delivery. Let's face it, he doesn't have a voice with great range, but his delivery and timing are fascinating. The band - including a great keyboard player amongst others - looks like it was having a grand old time and I think viewers of this DVD will as well. The item is a bit pricey, reason for this explained by others here.