You might want to hold off on installing the second disc of Grand Theft Auto V. Rockstar earlier today issued a warning to Xbox 360 players to refrain from installing GTA V's second disc.
According to Rockstar, installing the second disc will affect the game's performance for the worse. This will affect the GTA V's ability to stream texture data, which results in strange pop-ins. Apparently players who install the first disc of GTA V will not experience these problems--this will only happen if they install the second disc.
PlayStation 3 users will not have this problem--just 360 users. So if you buy GTA V tomorrow and find that you have the option to "install disc" or "play disc", click the latter. You'll save yourself some trouble.