First of all I apologize for asking questions that have probably been asked here thousands of times and if this post is in the wrong place.
So I've downloaded an original Playstation game with the intentions of playing it on a slimeline PS2 which has been modded. Up until now I've always just copied PS2 games which came out as an .ISO file and then simply just needed patching with an ESR disc patcher. Original Playstation games are a different format and the patcher I have doesn't work.
Could someone please explain how it's done?