Repacks can often reduce a game’s size by several gigabytes by removing system padding.
: Repacking removes "padding" files, often reducing a 7 GB game to a much smaller size (e.g., 2–4 GB) without losing actual game content. Format Conversion xbox 360 redump repack
A raw Redump of an Xbox 360 game is massive. An XGD3 disc (introduced in 2011) holds 8.7GB of data. But here’s the secret: much of that data is or security sectors that emulators can regenerate . The Quest for Digital Perfection: Understanding Xbox 360