what is an ARG?
As for caches with dvd's in them, sure you can put DVD's in a cache. Will I take it home an put it in my computer? not a chance.
Jim
Its an alternate reality game. Usually has clues and puzzles to solve. Hmmm, I guess if most people wouldn't watch a dvd that was made for the game then it probably wouldnt work. :/ Maybe I'll try it and if it doesn't work well, I'll quit. Thanks for the heads up!
http://en.wikipedia.org/wiki/Alternate_reality_game