In a recording method of a digital magnetic recording medium for a copyright protection and a variable speed playback when a user records a digital broadcasting program by a digital video cassette recorder (DVCR) or variable speed playback of a rental tape while performing a copyright protection...http://www.google.es/patents/US5832084?utm_source=gb-gplus-sharePatente US5832084 - Recording method of digital magnetic recording medium for copyright protection and variable speed playback
Recording method of digital magnetic recording medium for copyright ...
