There are advantages and disadvantages to both methods. I guess most people use both methods. I am about to get my xbox hardchipped soon and i am thinking of chucking in a massive 300 Gig HDD, or more to load games on. I read games load much faster off the HDD than from a DVD disc. That makes sense since the average XBOX drive only reads at about 4X max, and are kinda unreliable all round. It is also more convenient as you don't have to get off your butt and change discs everytime you want to play a different game, lol, super couch potato! By loading games from the HDD you are probably putting less stress and wear on your DVD optical laser which could potentially increase the lifespan of your DVD drive and reduce the chances of it faulting. Can you think of any other advantages? I heard that alot of people load all their games off the HDD, and only make a DVD-R backup for that reason, backup purposes, just incase their harddrive fails and they need to retain their games.