Bryan,
> I record TV programs from my NTSC PVR-250, connected to cable TV. I
> expected the size of the recorded file to be quite variable, depending
> upon the amount of redundancy in the particular program, but am
> surprised to see that it is just about exactly 4G per hour always. In
> particular, I expected the simple animation of The Simpsons to take up
> less space than a photographed program, but it's the same size too.
>
> Can anyone explain this? Is it this way for everybody?
>
I'm assuming you're using MythTV, but this would probably be true for
other recording methods. By default, recordings are made with a narrow
range of bitrate (bits per second), rather than varying the bitrate
widely according to content.
MythTV allows you to create recording profiles that specify nominal and
maximum bitrate, and you can select which profile you use to record
specific programs. In my experience, the defaults are just fine, though,
so I don't have any specific advice if you were looking to tweak your
bitrates.
Steven
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