First the good news, which is really good: the sound on this 340-song set is about as good as one ever fantasized it could be, and that means it runs circles around any prior reissues; from the earliest Aristocrat sides by the Five Blazers and Jump Jackson & His Orchestra right up through Muddy Waters' "Going Down to Main Street," it doesn't get any better than this set. The clarity pays a lot of bonuses, beginning with the impression that it gives of various artists' instrumental prowess. In sharp contrast to the past efforts in this direction by MCA, however, the producers of this set have not emasculated the sound in the course of cleaning it up, as was the case with the Chuck Berry box, in particular.