Just got this myself last week. I knew a 5.1 mix existed for this album but for some strange reason I always assumed it was lossy on a dvd-v. I was searching for new surround material and when I managed to see a scan of the back cover I couldn't believe it was full 24/96 lossless!! Ordered it pronto.
The mix is brilliant, the rears are used really well and fills the room with sound. There are layers in there I honestly never heard on the standard CD. One gripe is that I *think* it's a tad compressed overall but nowhere near a disaster and I only noticed it in places. Or it could be my ears, but I'm sure it's there slightly.
Hard to find much metal out there in surround that sounds as good as this.