Some archivists seek out the original "Title Update 1.0" (unpatched) ROM. This version contains minor graphical differences, glitches, and cut environment details that were removed in later patches to improve performance.
If you have dumped your own disc, valid checksums (SHA-1) for the main game files (Disc 2) should match known Scene release verification data. Be wary of: gta v xbox 360 rom
Regardless of the file extension (.iso, .god, .xex), the intent is the same: playing GTA V without the original physical disc. Some archivists seek out the original "Title Update 1