If you download random ROMs from different websites, they will often fail to load because they are from a different MAME version or are incomplete. A "Verified" set guarantees that if the emulator says the game is supported, it will launch.
A "verified" set refers to a collection that has been scanned against a (a database of correct file sizes and checksums) to ensure no files are missing or corrupt. mame 2003 plus romset archive verified
High-score saving is built-in and does not require external plugins. 5. Where to Find Verified Sets If you download random ROMs from different websites,