This CD/DVD set of tour extras might make you feel like your brain's doing sit-ups. There's the live footage from Paris, where Björk conducts vocal Pilates with a brass band dressed like Apache circus clowns. And there are videos on Voltaic like ''Wanderlust,'' a 3-D extravaganza starring prehistoric beasts. But then, with music this imaginative, it's easy to get lost in Björk's Oz. A windchimey version of ''Pagan Poetry'' from London is positively shiver-inducing. Also magical: footage of the Reactable, a glowing electronic instrument that looks like it's powered by the Blue Man Group's souls. B+
Download This: Listen to the song Pagan Poetry at last.fm
