Quote Originally Posted by Laura
Ultimately I'm looking for the baseline answer to codec performance issues, and I think your list of questions implies that there is no easy baseline. So for the sake of discussion, I'll create an average use scenario:
Standard Def, single layer, graphical content, 800x600, photo-jpeg medium that will perform at 30fps.
thats is a certainty.
you will get a single layer of 800x600 photo-jpeg 50% 30fps
( you will probably get 3 layers at this rate )
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some users will increase the photo-jpeg quality to around 65% if they are using less layers.
Above about 65%, the data rate gets quite high.

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800x600 is slightly bigger than standard definition - which is 720x480 at ntsc.

you should get 3- 4 layers of photo-jpeg 50% at 30fps.
with a Dual 2.5Ghz Mac and 9800 graphics card.
you should get this with a single scsi drive

i just did a show with 4 layers of 1024x768 content photojpeg 50% using XServe Raid off one dual 2.5Ghz Mac.