Compare your ISO against Redump.org databases to ensure the file is a clean 1:1 copy.
Most PS1 games fit on a single CD-ROM, but FMV-heavy titles like Yakyuken Special required multiple discs to store high-quality (for the time) video files. yakyuken special ps1 disc 2 iso repack
Some repacks include fan-made English patches for menus. Compare your ISO against Redump
Using formats like CHD or PBP to save storage space. yakyuken special ps1 disc 2 iso repack
If using RetroArch, use the "Disk Control" menu to eject Disc 1 and insert Disc 2 when prompted. Preservation and Safety
houses the late-game content and higher-difficulty opponents.