Quote:
Originally Posted by Creative
The article is more concerned about users wanting to watch films etc, which aren't being 'broadcast'. The user initiates the playout of the stream, many users can watch the same film but be at different points within the film. Theres a stream per user.
However, Broadcasting means sending out just one stream, users join the stream at whatever point the broadcast is at and have no option for pausing etc. i.e its like live TV currently. Broadcasting can easily use Multicasting. This means that the playout stream is pointed at a particular IP address range and port, 225.0.01:12345 for example (theres defined ranges already for multicast IP addresses). STB's (or PC's!) can then 'tune' in to this multicast IP address and receive that stream.
This broadcast IPTV is already in use.
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I have to admit, I did expand my own post to include televsion programmes (I've seen various articles that suggest that we will have full IPTV at some point), but the comments made in the article also apply to Video On Demand TV.
As for your point about Broad/Multi casting, that was part of the point I was trying to make (although trying to keep it simple, so the less technical members of the forum could follow). However, for residential multicasting, the residential ISPs also need to support Multicast, and, AFAIK, very few (if any) do.