Rockstar says for 360 version do not install both discs.

[Munkeh111]

ktay95 said:

Munkeh111 said:

ironmanDX said:
You probably install disc one and just play off disc two. No disc swapping needed. Halo 4 does it, just the disc numbers are opposite.

That would be ideal, but why not install both and play off one?

maybe its been glitching the game and until they can patch it they recommend that you dont. games always have day 1 issues these days that get patched fairly quickly

I would imagine that is the case, of course people should not have the game already... they should have to wait like the rest of us