Re: Any reason to make an mpeg a 12000 kbits/sec?
- From: "Ken Maltby" <kmaltby@xxxxxxxxxxxxx>
- Date: Fri, 30 Dec 2005 13:52:21 -0600
"Doc" <docsavage20@xxxxxxxxx> wrote in message
news:1135969454.032545.43800@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> In Pinnacle Studio 9, when creating an mpeg file from an avi file, it
> gives numerous options. The default "DVD compatible" mpeg rate is 6000
> kbits/sec video and 224 kbits/sec for audio.
>
> It gives you the option to go as high as 12000 on the video and 384 on
> the audio. Is there a good reason to use this higher setting? For grins
> I made one at this rate and the resulting mpeg2 is about 25 megs, the
> original avi is about 65 megs. The mpeg plays fine within Pinnacle
> Studio, but Windows media player chokes on it unless I reduce the
> viewing screen size significantly, and even then it looks "funny".
>
> My immediate goal for the moment is to make a high quality archival DVD
> of these logo animations to use on various projects. What would be the
> recommended way to archive them on a DVD? As DV avi? Mpeg?
> Uncompressed? I see doing it as an uncompressed RGB mpeg shows an
> estimated size of over 500 megs. Any reason to do that?
>
> Thanks for all shared wisdom.
>
Basically there are two reasons to increase the video bit rate
one is to provide for a larger image size the other is to provide
for increased image motion (think of the "Nature" tests in the
gaming benchmarks). Of course these increases also create
larger file sizes. (There is also the Frame Rate to consider but
for most situations that is a set factor.)
Beyond the DVD specs (~9800kbps) you are most likely
working with source material needing such support prior to
some latter manipulation or HDV. For instance a very high
bit rate "I-Frame Only" MPEG2 capture.
Luck;
Ken
.
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