[Heath Alseike]"Just curious, can any one explain the difference between premultiplied vs interlaced when rendering mov's or avi's."
They don't really have anything to do with each other, so there's no difference to explain. The AE livedocs have pretty good introductions to both, so these links might be a good starting point.
"Premultiplied" refers to a way of storing transparency information; more information on premultipled vs. straight alpha here.
Interlacing is a method for transmitting and displaying video (vs progressive display); see here for more.
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