John, I refer to the ETSI vertical interval signaling scheme EN 300 294 for analog transmissions. There is WSS 625 for PAL and WSS 525 for NTSC. http://portal.etsi.org/radio/AnalogueTVBroadcasting/ATVB.asp and http://www.intersil.com/data/an/an9716.pdf John ----- Original Message ----- From: "John Willkie" <JohnWillkie@xxxxxxxxxxxxx> > that "europe" has implemented widescreen signalling has just a bit to do > with the fact that it's part of the DVB spec, and there are test > bitstreams > that one can test against. ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.