A system operable with a Digital Versatile/Video Disc source, which system includes a scheme for altering one or more user preferences without interrupting the playback of a DVD title. Whereas the DVD title may have title-specific or content-provider-specific settings, the present invention decouples...http://www.google.fr/patents/US6064385?utm_source=gb-gplus-shareBrevet US6064385 - Systems with user preference setting schemes
