I am so confused everywhere I go tells me a different way. So can someone please be kind and explain to me real fast in a short simple way how to run isos on a PSP slim CFW 3.80 M33-5

Format your MS under setting or just plug in your PSP into the computer. Once your computer shows your PSP, look for a folder named "ISO". If one is not there make one. Then simply drag your ISO/CSO game into that folder. Exit out of USB mode, and just go to GAME on the PSP menu and choose the game. Nothing to it

God, I couldn't figure that out. Thanks!