RockstarGames.com just confirmed that the Xbox 360 version of Grand Theft Auto V will come with two discs, but don’t worry…you won’t have to constantly switch between the two. The first disc you’ll simply have to install, while the second one thereafter is what you’ll actually have running in your console, to play the game.
As for the PlayStation 3 version, only one disc is included and required to play, but before doing so, you do need to install it. Finally, both consoles do require at least 8gb of free space to run the game.