The parent game is in one file, and clones are in separate, smaller files that depend on the parent.
Contains the parent game and all clones (different regional versions, revisions) in one ZIP file. It is the most space-efficient but hardest to manage. fbneo full non-merged rom set
Various retro home consoles like the Sega Mega Drive, PC Engine, and ColecoVision The parent game is in one file, and