I think the test of any good concert is how much the audience gets into the groove. This concert is fabulous with a similar format as Diana's live in Paris concert, but with some great new tracks. Picture quality is a bit variable as lighting clearly has had some influence over graininess. The well lit scenes where the spotlights are on the musicians are very clear, but the darker scenes of the audience for example are very grainy. Diana looks beautiful in hi def and you can see every strand of her hair, it is so clear that it is almost like being there. Our toes were tapping from the start and didn't stop all the way through. Equaly as good as the Paris Concert, but even better in Blu Ray.