Ja, my roms are .bin files (non compressed) and it still doesn't work. Launcbox imported them fine, but when I click to play nothing happens. I have games for other systems that work fine, it's just the psx ones that do this. Please help. Thanks.
RetroArch 1.7.4 (set to use mednafen_psx_libretro core) - Windows 10 Pro - Launchbox 8.7 (paid version) - i7 3930k, 16gb ram, gtx titan, asrock x79 extreme4