In the emulator settings, "point" the software to that folder.
Ensure your BIOS region matches your game region. While some emulators are "region-free," using a US BIOS with a Japanese game can occasionally cause glitches. ps1-rom.bin bios
Many games rely on specific BIOS calls to function. Without the file, certain sound effects, fonts, or cutscenes may not render correctly. In the emulator settings, "point" the software to
Open your emulator's settings. Most will have a directory labeled "BIOS" or "System." In the emulator settings