Oh dear :S. Its been found that the install for Final Fantasy XIII is a massive 18 Gig across all three discs! ……
Granted the install is optional but from previous experiences with big tittles on the xbox such as Elder Scrolls:Oblivion It would seems the best route to go.
So this means not only will you have to swap the 3 discs in order to play but also install roughly 6 gig from each one to do so!.
I feel for the 360 owners but take solcace in my words ………………….. while you are waiting for an install i will be playing a superior version of the game on my PS3 with no intall required 😛
Wait did I say solace ? I meant sarcasm 😛