Im on Rebug 4.84.1 CFW, and i can get PSP iso's to run good. But some games have glitches. On ( https://www.psdevwiki.com/ps3/PSP_Emulator_Compatibility_List#T) it says to apply Mini2 Settings to a game. I know how to do that.. but psp2ps3 then converts it into pkg? Idk why but PSP pkg dont work...
