An information data composed of a predetermined quantity converted from input data and an information data parity for use in detecting or correcting an error in the information data are formulated. An ID comprising information including position information indicative of a position of the information...http://www.google.com.au/patents/US5617263?utm_source=gb-gplus-sharePatent US5617263 - Method of and apparatus for recording data suitable for a digital recording in a multiplexed fashion