A method and system in which a section of a previously encoded digital bit stream is replaced with another section of encoded video. In order to remove a section of encoded video, it is necessary to determine the beginning and ending points of the encoded video in the digitally encoded bit stream. The...http://www.google.com/patents/US6026232?utm_source=gb-gplus-sharePatent US6026232 - Method and system to replace sections of an encoded video bitstream