Been listening to some Sepultura, haven't in ages. Along with Morbid Angel I'd say they were one of the most important bands of my early teens.
As much as I love their earlier albums, especially Schizophrenia and Beneath the Remains, to this day I think Chaos A.D. gets a bad rap from old school metal fans. It is definitely the album where they make the greatest departure from their original sound (up to that point), but unlike the "tribal" nu metal shitfest of Roots and everything that came after (well, at least speaking of Soulfly -- and I don't think Sepultura ever recovered from Max's departure), Chaos A.D. was still fucking violent hardcore-influenced thrashy death, and listening to a song like "Refuse/Resist" has always given me the impression that they were rising to their destiny as the once-oppressed becoming a great and influential band, heroes to their nation, and that song in particular was like a pipe bomb in the face of (their) oppressors. Looking at it that way, on top of the simple lamentation of the total abandonment of their beginnings as a metal band right between Slayer and Morbid Angel, it seems quite sad to me that a retarded American trend was enough to ruin such giants.
Sometimes I think I should give them a look these days -- A-Lex's cover artwork is obviously meant to remind one of Beneath the Remains and the whole A Clockwork Orange thing seems possibly interesting -- but I just know it'll be some uninspired groove metal crap and I'd be disappointed.