Effect On Quality Of Compressing HDTV

[xzerst]

I have noticed some 45 minute tv programs captured in HDTV range in size from over 1 gb to under 300 mb. My question is will this have any effect on distorting or pixelating the image if captured under 300 mb?

[eb]

In digital from sat HDTV 1920x1088i weight of 1 minute record is 130MB.
So 45 minutes is ca. 5 GB. You can compare this values with yours.

[Zep]

I have noticed some 45 minute tv programs captured in HDTV range in size from over 1 gb to under 300 mb. My question is will this have any effect on distorting or pixelating the image if captured under 300 mb?

Just because the rez is 1920 x 1088i doesn't mean the
show is truely that rez. Many shows are just up sampled into
HDTV space and thus compress very very well even for mpeg2.
Of course how well a show compresses depends on the content of
that show also.

So the answer is yes. the show will look like crap at that rez
and not have any true HD detail. The best thing you can do is to
resize back down to the original rez and encode that.

Like eb said you should be gettting around 5 gigs for 45 minutes
with a .ts stream.

[woah!]

i get very good results with x264 at 704x400 res, my file sizes are about 300meg .

heres a 30 sec clip of 24 to show you at 4meg with sound. so works out about 325meg for 45mins:

http://www.badongo.com/file.php?file=11111111__2006-01-19_900bitrate.rar

[Rash]

Nice quality indeed! Was that a terrestrial transmission (ATSC) or cable?

[woah!]

HD source from cable. 24 is done in 1280x720p 60fps.