Understanding the file structure is key to a frustration-free emulation experience.

In the world of emulation, a ROM (Read-Only Memory) is a digital file containing the data from an original arcade cartridge's memory chips. are the digital snapshots of the games played in arcades worldwide.

When you download a Neo Geo ROM (usually in .zip format), you will see files with specific extensions:

A single Neo Geo game is not just one file; it is a collection of several files (Program, Graphics, Sound, and BIOS data) packed into a .zip or .7z archive. 📂 Key File Types Inside a ROM Set

A typical Neo Geo ROM isn't just one file. Because the original cartridges were massive (ranging from 330 Megabits to over 700 Megabits with "Giga Power" technology), the digital versions are split into several specific files, each corresponding to a chip on the original PCB.