> A few ps3 games I've seen had 4GB or more binaries.

Is this because they are embedding assets into the binary? I find it hard to believe anyone was carrying around enough code to fill 4GB in the PS3 era...

I assume so, there were rarely any other files on the disc in this case.

It varied between games, one of the battlefields (3 or bad company 2) was what I was thinking of. It generally improved with later releases.

The 4GB file size was significant, since it meant I couldn't run them from a backup on a fat32 usb drive. There are workarounds for many games nowadays.