PSVita News: A look at recent progress relating to the GPU acceleration in RetroArch and native resolution for all PSP games bounties + a quick look at a bounty for 960x544 output
Retroarch - PSP Overlays - YouTube
PSP Emulation Using RetroArch - LaunchBox Tutorials - YouTube
Technically Supports working on PSP? : r/RetroArch
How to Play PSP Games on PC! Retroarch PSP Setup! - YouTube