How to Play PS1 Games on PSP CFW or PS Vita Adrenaline with PSX2PSP | PS1 EBOOT Conversion - YouTube
How to use Sony's Official PS1 & PSP emulators on a 9.00 PS4 - YouTube
Are the PS1 games on PSP emulation or is there some sort of hardware backwards compatibility ? I wanted to put all my PS1 games on it but idk if there can