"A new, 50th anniversary box set brilliantly explores Hendrix's headspace leading up to the record's release with private demos, a jaw-dropping live performance by the Experience at the Hollywood Bowl, a documentary about the LP and a 5.1 surround sound mix of the record, which is also remastered in its original form, by engineer Eddie Kramer. With the way it tries to cover everything, the collection is nearly as ambitious as Hendrix was when he made it (though that would be impossible). The original album still sparkles, thanks to the remastering job, and the documentary is insightful (most of it came out previously as an episode of Classic Albums). But it's the non-album material that makes the box set definitive".