This identifies the PAL-region release specifically localized for the Spanish market. Unlike many games of the era that only featured translated text, Metal Gear Solid in Spain featured a complete, legendary Spanish voice dub , often cited as one of the best in gaming history.

Since this is Disc 1, you will eventually need the corresponding Disc 2 CHD file. Most emulators allow you to "eject" and "insert" the next disc via the virtual menu when prompted by the game.

During a game’s original production run, manufacturers often released "Revisions" (e.g., v1.1) to fix bugs or glitches present in the launch (v1.0) discs. Rev 1 typically includes minor technical polish or stability fixes.

Highly recommended options include DuckStation (Windows/Android), SwanStation (RetroArch), and Beetle PSX HW .