You will still need the original PlayStation BIOS files (like scph5502.bin for PAL games) for the emulator to boot correctly.
The Spanish version of Metal Gear Solid is unique because it features a dedicated voice cast led by as Solid Snake. For many Spanish-speaking players, this is considered the definitive way to experience the story, as it allows for a cinematic experience without needing to read subtitles during intense action sequences. Technical Benefits of the CHD Format Metal Gear Solid -Spain- -Disc 1- -Rev 1-.chd
This is a lossless compression format developed by the MAME team. It is the preferred format for modern emulators because it shrinks the original .bin/.cue files into a single, smaller file without losing any data quality. The Spanish Localization: A Cultural Landmark You will still need the original PlayStation BIOS