GTA IV was good (sort of) in that way. You put the disc in the drive, start the game, remove the disc and continue playing without any problems (still meant using the disc way too often in my opinion :(). I had it installed on my computer as well as my 2 sons computers so we could play multyplayer. As each one started the game, they used the disc, then I put it away for safe keeping. Not so sure that ws legal either, but it worked. My sons and I has some crazy multiplayer games with it. ;D