: Tools like PowerISO can convert large files into compressed formats like DAA , though these may require mounting as virtual drives for certain tools to recognize them.

The is using XDelta or PPF files . You apply these to the original ISO using tools like UniPatcher , which supports patch formats like PPF and XDelta3. While the patch file itself is tiny, the patching process creates a brand new ISO with the modifications permanently applied.

PS3 ISO games are digital copies of PlayStation 3 games that are stored in ISO format, which is a type of disk image file. These files contain the entire game data, including the game itself, artwork, and other supporting files.