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Old 30-08-2006, 19:49   #28
popper
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Re: Is there an NTL PVR?

Quote:
Originally Posted by handyman View Post
Mpeg4 is a higher compression method. Gives reduced size files.

Mpeg2 is just as good and you will not be able to tell the difference, sky have greater bandwidth restrictions than ntl/telewest so need better compression.

@neil - Whilst the basic specs of sky plus sound good it's not the best thing on the planet, for a start is an amstrad box underneath and the lastest software release is murdering our box, takes a second to respond to any button press.

The ntl box will be better spec though not having trialled it I cannot comment on how well it will work.
well some might not be able to tell the difference, many more will, as many, many people that have taken the time and trouble to to get the current BBC/ITV/etc AVC HD broadcasts and compare the real DVB streams have said so in many places over the net etc.

as always it depends on how one will display it etc, also Mpeg4 means nothing, other than a collection of standards , please everyone, be more clear AVC or ASP , hence my bolding, for instance ASP and AVC are both covered, but as many now know, Mpeg-4/ASP aka divX/Xvid is old and less advanced than the Mpeg-4/AVC aka H.264.

if you need even more convincing AVC is a good thing keep in mind MPEG-4 AVC/H.264 on Hardware - HD-DVD/Blu-ray is a confirmed standard for the future, ASP is not found on all hardware players.

to try and make it clearer to everyone, heres Bond's doom9 thread http://forum.doom9.org/showthread.php?t=96059
and table
as you can clearly see, the old ASP has far less options
than the better compression codec AVC so its not just about compression but options such as the lossless mode of Mpeg-4/AVC etc.

i do take your point about bandwidth and how NTL/tw are able to ignore that aspect, and indeed thats a plus as it means they wast more if needs be, theres always the headend downstream points UL and others know a lot about, i just wish NTL would inovate......


---------- Post added at 20:49 ---------- Previous post was at 20:16 ----------

Quote:
Originally Posted by foreverwar View Post
DirecTV HR20-250 is out in the US, that does Mpeg-4 - it is based on the Tivo. http://uk.gear.ign.com/articles/679/679224p1.html
thanks for the link, it would appear that new box is infact using the older Mpeg-4/ASP aka DivX codec rather than the newer Mpeg-4/AVC aka H.264 , its easy to spot once you know that the ASP gives on average .5 better compression compared to standard Mpeg2 codec, were as the far better AVC gives around 2.0 to 2.5 better compression compared to mpeg2.

this gives it away
"The HR20 is able to record about 30 hours of MPEG-2 streamed HD content. However, it is able to store more than 50 hours of MPEG-4 HD broadcasts"
it would be far higher hours for the real AVC.

its no wonder people are saying mpeg4 instead of AVC as these marketeers keep refering to it that way, makes you wonder if their trying to confuse the punters to buy/clear the old Mpeg-4/ASP stock.
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