Japanese only SHM-CD (Super High Material CD - playable on all CD players) pressing. Packaged in a paper sleeve. Universal. "Raw Blues" is a mid-"60s sampler combining contributions from piano blues masters (such as Otis Spann and Jack Dupree) with selections by John Mayall along with other fixtures of the British blues scene. ("Long Night," for example, features help from "Steve Anglo" - actually Steve Winwood with identity disguised for legal purposes.) The playing is superb throughout, making "Raw Blues" a choice little nugget of British blues. 2008.