XBox 360 Owners Warned Not to Install Play Disc for GTA V
Rockstar Games is warning purchasers of the XBox 360 version should not install the second 'play' disc onto their hard drives. The way Rockstar developed the game allows it to increase the throughput of the game by using both the 8 gig install of the first disc from the hard drive, while simultaneously accessing the play disc from the cd drive. If users install both to the hard drive, performance slows for graphics rendering.
This is why the XBox 360 version has no available digital download, unlike the PS3 version. How performance on the PS3 is compared to this method used with the 360 will be determined over the next couple of days.