scph5500.bin (PS1 JP BIOS), scph5501.bin (PS1 US BIOS) and scph5502.bin (PS1 EU BIOS) are required. psxonpsp660.bin (PSP PS1 BIOS) and ps1_rom.bin (PS3 PS1 BIOS) are optional.
has support for minUI's psx roms folder structure. if you want to use it with minUI or another system that needs each ps1 rom to be in it's own folder, just edit the script and set CREATE_FOLDERS to ...
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