I recently purchased the special edition of the new Opeth album which comes with a DVD with 5.1 audio mix of the entire album. I personally haven't been exposed to this before so I made special effort to find a good surround sound system to play this DVD on. The sound was amazing. Thus, I was wondering if any other bands have produced albums with 5.1 audio. (preferably something Death Metal or Progressive Metal ish, but I'm open to other genres). Please advise!