Metal Gear Solid -España- -Disco 1-.chd is a historical oddity, not a legitimate way to play MGS. If you want Spanish MGS1, get the official Subsistence re-release. But if you want to hear Snake yell "¡Metal Gear!" in a thick Madrid accent while the audio crackles like a walkie-talkie in a thunderstorm, this .chd is an unforgettable (and regrettable) journey.
This is a fascinating and highly niche topic. You're referencing a disc image: Metal Gear Solid -España- -Disco 1-.chd . Metal Gear Solid -Espana- -Disco 1-.chd
First, a quick clarification: (Compressed Hunks of Data) is a format used primarily by the MAME emulator to compress disc-based games (PS1, Saturn, etc.). So this is almost certainly a PlayStation 1 disc image of a Spanish modification of Metal Gear Solid . Metal Gear Solid -España- -Disco 1-