PS Plus guide: all PS1, PS2, and PSP games with trophy support
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
Convert PSX Games To PSP Format with PSX2PSP - pspunk
How to Play PS1 Games on PSP CFW or PS Vita Adrenaline with PSX2PSP | PS1 EBOOT Conversion - YouTube
jonchoo: Multi-disc PlayStation PSP eboots
How to play PS1 games on your Sony PSP | TechRadar
Modded my PSP to play PS1 games. : r/gaming
PlayStation Portable - Wikipedia
Einhänder - such a brilliant (PSX) game, with cool neon graphics and a german title. Go check it out! It actually is my first time playing a shooter but this one really
CWCheat - PSP and PSX Cheats in Adrenaline - CFWaifu
PSP - POPSloader 6.60 PRO (PS1 on PSP) | PSX-Place
I Turned My PSP 1000 Into A PS1 Classic! - YouTube
Sony's PSX emulator for PSP hacked to run any old PSX ISO | Engadget