Very interesting thread everyone !
Just to add, don’t the black dots on the edge of the doecahedron graphic in the PDF look like alpha masks gone a bit wrong ?
If you select the clip in the timeline and press “cmd_9” again, try changing the alpha properties by right-clicking on the word “straight” next to “alpha” and selecting black, white or ignore. This might change the way the dv clip composites and renders.
But i would still find a better format like the others said.
Cheers !