This collection is disappointing because they've worked so hard to clean up the hiss and scratches of recordings made in a hotel room over 70 years ago, that they've so muffled the voice and music that it just doesn't come through realistically. Sony's King of the Delta Blues (Vol.s 1 and 2) offers a virtually complete collection and the diff in sound quality is startling. While you hear more hiss and scratches, the sound of Johnson's voice has a presence that that the "Complete Collection" lacks. I already owned the latter and upon hearing the former, went out and bought it. Skip the Complete Collection and get the recording that sounds more real, more alive. If you already own the "Complete Collection" and you like the music, bag it and get King of the Delta Blues edition, Johnson deserves to be heard without a towel wrapped over his mouth.