A full MAME set requires tens of gigabytes of storage just for the base zip files. If you want games that utilize CD-ROMs or hard disks (known as CHD files), the set balloons into hundreds of gigabytes.
: Clone games only contain the files that differ from the parent game. To play a clone, the parent zip file must also be present in the directory. ⚖️ The Legal and Ethical Landscape
MAME 0.240 is a "middle-ground" version frequently used on devices like the Raspberry Pi 4
Related games (like different regional versions of Street Fighter II ) are bundled into one zip. This saves space but can be harder to manage.
