Personally I think that Star One's Live on Earth is really boring as hell. I would not recommend that one to those who have not already purchased it. Additionally, I think Vai's Astoria DVD is a pretty big let down as well. A good deal of the song selection is just boring, wacky Vai nonsense. If you are going to get on Vai DVD, stick with the ALS DVD. Yeah, it's basically just the album straight through, but that's by far his best work, and the playing on it is extrodinary. Not to mention what a valuable learning tool it is for those who want to play those songs, because they focus on him and his fretboard throughout (he originally made it as somthing of an instructional piece). DVDs that I have really loved of live performances are the new Angra live DVD, which has a ton of their really stellar material, and Dream Theaters Scenes from a Memory live. While the recording quality is kinda poor and you really have to blast the volume because it is naturally so quiet, those guys are so tight and in sync live that it is worth watching just to see how Rudess's hands move.