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Encoding two video streams

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One last question for a while.  I think I've stood on the shoulders of
giants enough after this one.  :)

I need to encode two different files from the same video source - One high
quality, one low quality.  I'm not so concerned with the codec (although
there's a strong desire to use the windows media codecs from some of my
associates.)

I've been struggling with this for a while, and I'm not sure if I know the
answer.  The idea I was playing with was encoding to a high bitrate file,
and then using "transcode" to downsample it once the high quality encoding
is done.  I'm not so sure if I like this solution (mostly due to my complete
inability to get transcode working how I'd like) and I was wondering if
anyone had any input into this.

The ideal situation would be to somehow proxy the video/audio stream so that
both formats could be encoded simultaneously, as I have CPU cycles to spare.

Thanks in advance,
Michael Jackson

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