In computing, ROM Mark or BD-ROM Mark is a serialization technology designed to guard against mass production piracy or the mass duplication and sale of unauthorized copies of pre-recorded Blu-ray Discs. Only licensed BD-ROM manufacturers have access to the equipment that can make these unique ROM Marks, thus allowing authentic BD-ROM media like movies and music to be identified.[1]

The ROM Mark contains the Volume ID required to decrypt content encrypted using AACS.[2]

See also



  • Panasonic, Philips, Sony. 3C BD-ROM Mark Specification.
  • Edmonds, Robert A.; (Saratoga, CA) ; McDonnell, Kevin J.; (Pleasanton, CA) ; Meulder, Johan De; (Kessel, BE). "Method and apparatus for identifying a digital recording source".
  • The Internet Archive)
  • CDRInfo. "Blu-ray Disc Marking System Explained".
  • CDRInfo. "DaTARIUS DaTABANK Reads BD-ROM Mark".
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