Chris W writes: "Downloadable Content (DLC) has been a total game-changer this generation for consoles. From PC-like expansions, to map packs, we’ve seen just about every type of digital good sold either on Xbox Live Marketplace or the PSN Store. Under all the glitter and gold of really great DLC, is a very dark world. Something much worse than the nickel and dime DLC trick (I’m looking at you Guitar Hero and Rock Band), I speak of DLC that’s delivered on the game disc. Is this practice ever acceptable, or is this just another way to make gamers pay twice over for content they already own?"