The PS3’s native file system for external USB drives is . While FAT32 is widely compatible, it has a hard ceiling—no single file can exceed 4GB (minus 1 byte). However, many PS3 games (especially disc-based backups like Gran Turismo 6 , God of War: Ascension , or The Last of Us ) contain .iso or .JB folder files that routinely exceed 10GB, 20GB, or even 40GB.
Split4G does not require installation. It runs directly as an executable on Windows (and reportedly via Wine on Linux/Mac). Split4G - PC Tool to split large -4GB - PS3 fil...
You don’t need to split files if you FTP directly to the PS3’s internal HDD (which uses a different file system). Split4G is strictly for external USB transfers. The PS3’s native file system for external USB drives is
It sounds like you're referring to , a utility commonly used in the PS3 homebrew / backup scene to handle the FAT32 limitation (files over 4GB cannot be copied to a USB drive formatted as FAT32, which the PS3 requires for external drives). Split4G does not require installation