Craig Birkmaier wrote: [From the BBC HDTV report:] "Each HD channel is likely to need bandwidth equivalent to that required by three or four standard definition channels even when using more advanced MPEG-4 technology." > Figures. > > Here you go again drawing unfounded conclusions from the thin > air. Craig, being obnoxious does not make you, or anyone else, right. And throwing a lot of words at something so basically simple does not either. If a 576i SD program takes, on average, roughly 5 Mb/s, that's average and not peak, then 3 of these take an average (not peak) 15 Mb/s, and four take an average (not peak) 20 Mb/s. Reduce the quality of the 576i SD to an average (not peak) of 4 Mb/s, which is what decent SD programs here use for 480i, and you're still requiring an average (not peak) of 12 to 16 Mb/s for 3 or 4 SD programs. The BBC claimed, from their real-world testing, that this many SD programs would have to be removed to make room for one H.264 HDTV program. That looks to me very much like a low estimate of 12 Mb/s, and a high estimate of 20 Mb/s. Throw whatever prefiltering words you like at this, the results are not a dramatic improvement compared with H.262. As I already said, I do not doubt that H.264 will give better results as the bit rate is reduced. But there's no reason for over-hyping it, either. I'm not a salesman for H.264. I'm just after some unvarnished truth, rather than press releases. Bert ---------------------------------------------------------------------- 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.