John Shutt wrote: > Multicasting is not mature enough to even begin to replace satellite > distributed programming on a nationwide scale. So far it only works > within walled gardens. > >> From Wikipedia's multicast entry: > > http://en.wikipedia.org/wiki/Multicast > > "No mechanism has yet been demonstrated that would allow the IP > multicast model to scale to millions of senders and millions of > multicast groups and, thus, it is not yet possible to make > fully-general multicast applications practical. For these reasons, and > also reasons of economics, IP multicast is not in general use in the > commercial Internet." > > John > -- no longer quoting John below ---. > Millions of receivers can be done. Millions of senders and multicast > groups would be like millions of national TV networks and that > cannot. But it doesn't have to be. If you substitute dozens of > multicast groups then it is a different story. Only a very few > sources of content have the visibility, demand, and economy of scale > to justify millions of SIMULTANEOUS viewers. But we were talking > about the Super Bowl here. - Tom ---------------------------------------------------------------------- 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.