If you download a "MAME32 ROMs Pack," you are essentially downloading a snapshot of arcade history as it was understood by the MAME developers in a specific year, usually around the early-to-mid 2000s.

Technically, downloading a ROMs pack for games you do not own is a violation of copyright law. However, the landscape is nuanced:

The "ROMs Pack" acts as a .

The "MAME32 ROMs Pack" is more than a folder of illegal files. It is a museum exhibit that fits on a hard drive.