Two decades years after Live Aid addressed the issue, lethally oppressive poverty in Africa remains a blight on the planet. Thus, in the Summer of 2005 activist Bob Geldof staged an even more ambitious series of continent-spanning concerts dedicated to raising funds and public consciousness about international debt relief. This expansive four-disc chronicles those shows in one of the most ambitious concert documents ever attempted, capturing all of the highlights (and a few complete artist sets) of concerts in London, Philadelphia, Toronto, Paris, Berlin and Moscow. Underscoring the events' sense of unity, the performances here span both generations and genres, offering veteran rock fans often muscular sets by Elton John (including a woozy take on T. Rex's "Children of the Revolution" with Baby Shambles' Pete Doherty), The Who, Sting (who sharply reprises a trio of Police favorites) and the ubiquitous Paul McCartney. But the highlight of the Jurassic set's contributions are a reunion of Roger Waters and his long-estranged Pink Floyd bandmates on a sonically flawless five-song whirl through highlights of "Dark Side of the Moon", "Wish You Were Here" and "The Wall"; footage of their rehearsal for the show is contained on the set's equally eclectic fourth disc of bonus materials. But there are highlights here for nearly every taste, be they a fine sampling of contemporary UK and Australian rockers ( Coldplay, Jet, Razorlight and especially blistering performances by Stereophonics and Kaiser Chiefs), a little hip-hop nostalgia (a joyous Will Smith and Jazzy Jeff leading what seems half of his Philly hometown in a goofy singalong of the "Fresh Prince of Bel Air" theme); showy turns by pop-meister Robbie Williams and chateuses Mariah Carey, a rousing set by Black Eyed Peas (featuring Rita and Stephen Marley on a cover of "Get Up Stand Up"). Other one-off duets include Coldplay and Richard Ashcroft doing a fine version of the latter's "Bittersweet Symphony," Stevie Wonder with Rob Thomas ("Higher Ground") and Adam Levine ("Signed Sealed Delivered"), a tender take on "Angel" by Sarah McLachlan and Josh Groban and McCartney and George Michael taking an upbeat turn via "Drive My Car," before Macca closes out the London show by leading its various participants in an obligatory singalong of "Hey Jude." Royalties from sales of the set will go to the Band Aid Trust for the relief of hunger and poverty in Africa. --"Jerry McCulley"