3-disc set.
Region 1 folks--don't forget that next Tuesday, Oct. 27, is Hot Fuzz three-disc (turn down your volume before clicking on it) super amazing extravaganza DVD box set day!
I checked a couple places at random: Amazon has it for pre-order at $26.19, while Deep Discount has it for $26.09.
The mystery guest commentator for the fifth commentary track is...wait for it...Quentin Tarantino.
There's also an extended Fuzzball Rally, complete with commentary by the Holy Trio and Joe Cornish. As a commentary-track fan, yours truly is in heaven.
There are also "Video Blogs" and "iTunes Blogs"; not sure what those are.
All other features are the same as in the Region 2 2-disc set.