: The parent game has its own ZIP, and each clone has a separate ZIP containing only the files that differ from the parent. You must keep the parent file to run any clones.
While many of these companies (like Midway or Data East) no longer exist, their intellectual property has often been bought by holding companies. The "Abandonware" Myth: mame arcade rom pack
When searching for a high-quality , you will encounter specific jargon. Here is what those terms mean: : The parent game has its own ZIP,
This has birthed a sub-culture of ROM management software, such as ClrMamePro such as ClrMamePro