Creating a 'high-def' AV Component

I'm working on a virtual classroom videochat application for
Communication Server MX. I'm about 4 days into my experience with
Flash Comm and I'm not very far along.
The application calls for four small live video spots for the
professors who are presenting and on larger video spot for the
classroom camera. I've tried doing this using Flash MX' AVPresence
component linked to the simple connect component. This setup works
but gives end-users horrible video quality.
I've read around and found that the problem is that I am
essentialy stretching the video by specifying a larger size than
the default at that is the source of the distortion and pixelation.
I also found many people who suggested that the solution was to
build a custom video component that allows enlarging the feed.
So far I can't find any sort of guide that suggests I can do
this or explains how. I've got pages of documentation but I don't
know enough about the stuff to sort out where to start piecing
together this component.
Can anyone give me or direct me to some good resources or
tutorials for creating a higher resolution video component?

Along with making the video object larger, you also have to
tell the camera what resolution to capture at (I think the default
is 160x120).
Look in the docs for the camera class, specifically the
setMode() method. Once you change the camera image dimensions to
match the size of your video object, the picture will clear
up.

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