Grimmwerks wrote (about Sorenson codec):

"Nice small files yet look fantastic; you can even scale them
up and they look great."

Interesting. We also use Sorenson codec and find that Sorenson coded video
looks great, but only as long as it is NOT SCALED.

As soon as you scale it, you have nasty horizontal stripes, - looks similar
to combining two half frames of video into one still frame. And this doesn't
look great at all. The effect is clearly visible even if the footage was
taken in full frames.

And this is a specific behaviour of Sorenson. Whereas other codecs give you
other artefacts. In my experience for scaling there's nothing better than
MPEG.

Michael von Aichberger
www.aichberger.de

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