Landmark Metallica album
Producer Bob Rock has predicted that Metallica's tenth album may be a "landmark" - but he doesn't believe he'll work with the band again. He first worked with James Hetfield and co on their Black Album in 1991, and continued through the decade on Load, ReLoad, Garage Inc and S&M.
His final collaboration was 2003's St Anger, documented in controversial movie Some Kind Of Monster. But he wasn't on board for 2008's Death Magnetic, and he thinks it's unlikely he'll return.
Rock tells the Eddie Trunk Podcast: "I don't see it happening. I think they've got to keep moving forward. With Death Magnetic they went back to their roots, which was great. I get where they went and they had to go there.