I’m new to RetroPie but I did manage to have a few games running by just copying the .bin files to the PSX rom folder.
The problem is that PSX games are usually split into more than one .bin file and therefore show up as multiple entries on the game list in the PlayStation section.
I did read elsewhere that the emulator can be forced to read the .cue files only but this apparently requires editing of the es.systems.cfg file which because of permission issues, I am so far unable to do.
With a clean 2.6 image, you should be able to put the SCPH1001.BIN BIOS file into the BIOS folder and your playstation disk images into the ROMS/PSX folder and play almost immediately. You’ll need to reboot the Pi or restart EmulationStation to have it detect the new files.
By default, the EmulationStation will detect the following as PSX ROMs:
bin .BIN .cbn .CBN .CUE .cue .iso .ISO .mdf .MDF .pbp .PBP .toc .TOC .z .Z .znx .ZNX
You can edit ES_Systems.cfg to have it also open .IMG as well (and not open .CUE).
To take ownership of ES_Systems.cfg so you can edit it, do the following: sudo chown pi /etc/emulationstation/es_systems.cfg
Then edit /etc/emulationstation/es_systems.cfg
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