New to Retrobat, whats the best way to set up PS3 Roms/Collection? Can't get to load from retrobat

So the PS3 roms I can find seem to all be pkg and rap files, from a zip. Often only the zip will populate in the retrobat gamelist, but then when you launch they cannot run the zip. I can confirm these work, but opening rpsc3 by itself and unpacking them there, but then how do I get those to link so I can launch from retrobat?

Sorry if this is not the right place for this, tried to search everywhere but seem to be the only one with this question =/

Hello

The best way is to look at our wiki, where the different way to do are explained

https://wiki.retrobat.org/systems-and-emulators/supported-game-systems/game-consoles/sony/playstation-3#adding-ps3-games