Rockstar says for 360 version do not install both discs.

[SvennoJ]

ethomaz said:

SvennoJ said:

That's the first thing I thought about too when full installs for all games were announced for next-gen. The fastest way to load game data is to use both HDD and optical drive. I imagine that the first wave of next-gen games won't suffer as their is plenty of memory to use as cache, but full installs might hurt load times in the long run as games get bigger.

Digital?

I've always wondered whether an all digital release has a disadvantage over a disc based release that can use both HDD and drive to read data from simultaeneously. For example a disc based release with an install can stream track data from the disc while loading the cars from HDD.
With Halo it was proven to be slower with a full install. Although that mostly had to do with the HDD being used for caching, which an all digital release would not have to do.