Brandon Undead of the Destructoid community blog says,
"Today we (Walmart) received some material concerning promotional efforts for the forthcoming AC/DC studio album (sold exclusively at Wally World), 'Black Ice'. In it was a bunch of stuff about selling hats, and t-shirts, and AC/DC branded stadium seats, and- WAIT! What's this!?
An AC/DC Rock Band 2 Expansion Pack? 'AC/DC Live at Donington' ARE YOU KIDDING ME!? I wondered for a long time if they were referring to DLC, and then remembered we can't sell DLC in a Wal-Mart store. Unless someone has come up with something super-flashy that I don't know about, this must be a physical disc.
By virtue of my totally lady-moistening skills of espionage, I have provided super-secret-spy-cam proof of this memo, and so will probably be terminated in short order. I hope you guys appreciate this!"