No way can a mere four discs cover every facet of the blues king's amazing recording career, but MCA makes a valiant stab at it. The first two discs, as expected, are immaculate: opening with his Bullet Records debut ("Miss Martha King"), the box continues with a handful of pivotal RPM/Kent masters before digging into his 1960s ABC-Paramount material ("I'm Gonna Sit in 'til You Give In" and "My Baby's Comin' Home" are little-recalled gems). The hits -- "The Thrill Is Gone," "Why I Sing the Blues," "To Know You Is to Love You" -- are all here, and if much of the fourth disc is pretty disposable, it only mirrors King's own winding down in the studio.