I'm curious, is it a long process? There's people that have been trying to patch a PBP file, god of war ghost of sparta demo. Is it an easy process? What software would i need to patch it and how would i go along with it?
edit: I've read using iso tool and gokus guide that patching an iso isn't hard at all, but how do you go about PBPs i really want to try this demo.

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How to patch?