A system and method for controlling copy generations of digital data stored in recording media to protect the data from unauthorized copying, in which the copy generations are recognized using a plurality of partial identification information embedded in the data. The data is stored on a first recording...http://www.google.com.au/patents/US20020073037?utm_source=gb-gplus-sharePatent US20020073037 - METHOD AND SYSTEM FOR CONTROLLING COPY GENERATIONS OF DIGITAL DATA
