The Amnesty International box poses an interesting question: is it best to see or just hear the music? The "Released!" compilation of highlights from benefit concerts, tours and videos between 1979 and 2012 decides on the former. The 6-DVD set celebrates how music boosted the human rights organization, mixes in the message, and is well designed to help people navigate between performances. That does, however, make the two-CD musical set seem slight in comparison, because people interested in portability of music can see many things that they are missing. It relies too heavily on a 1986 Giants Stadium show that hasn't aged very well. Memo to Bryan Adams: It may seem like a good idea to have the audience sing the first verse of your latest hit in concert, but think of how that will sound on disc 25 years later. Annoying, that's how.

Fortunately, there are genuine treats. Peter Gabriel's' reimagined "In Your Eyes" with Youssou N'Dour from Paris in 1998 is transcendent, as is Tracy Chapman's stately "Fast Car" and Bruce Springsteen's solo "No Surrender." The real star is Bob Marley, with three of the 30 songs covers of his compositions.