# Verify all ROMs mame -verifyroms > rom_verify.txt
Verified 0.159 sets are discussed on:
The word "verified" in the topic's title is critical. In the world of ROM management, a "verified" set means that every file has been checked against a known DAT (data file) from the MAME project. A verified MAME 0.159 collection guarantees that all ROMs and CHDs match the correct checksums (CRC/SHA1). This eliminates the frustration of downloading corrupted or incomplete files. For the user, a verified set ensures that when they load Killer Instinct (which requires a CHD for its hard disk data) or Mortal Kombat (standard ROMs), the game will boot without error messages or missing graphics. mame 2014 reference set mame 0159 roms chds verified
MAME 2014 Reference Set specifically targets MAME version 0.159 # Verify all ROMs mame -verifyroms > rom_verify