: Once extracted, PS3 games can be massive (20GB–50GB+). To save space without re-zipping them, users often use CompactOS or CompactGUI on Windows. This uses transparent system-level algorithms (like XPRESS8K) to reduce file sizes by up to 40% while keeping them fully readable by RPCS3.
While the emulator requires uncompressed access to game data, you can use these methods to save space: rpcs3 highly compressed games work
