Metallica’s fifth LP, the self-titled “Black Album,” marked the band’s crossover from ’80s thrash heroes to ’90s rock radio gods. Ahead of its 30th anniversary this August, the band just announced two major commemorative releases. One is your standard expanded reissue/remaster situation, available in various formats including a behemoth box set with 6 LPs, 14 CDs, and 6 DVDs. The other is a covers collection called The Metallica Blacklist featuring 53 artists’ take on “Black Album” songs.