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Posted by Binba on 07/08/06 07:48
My college is equipped with DSR-80's wired for composite/component (I
suppose they just didn't bother to assign a patch panel for SDI, and no
one has ever complained). I recently realized that doing a firewire dub
with cheapo decks (say a DSR-30 or even a sony DV camcorder) will give
better results.
1. But all this is no news. My question is, from your experience -
what's the quality difference like between a firewire dub and a
DV-component-DV dub?
My current assumption is, if I'm capturing online for
mastering/distibution, a digital dub should be just fine, whereas I'll
think twice before onlining from the component dubs.
2. On the same note, I keep hearing that in a firewire dub there's
"VIRTUALLY" no generation loss. Why always this "virtually"? One post
mentioned that after some 18 generations it will start degrading. Why
so? When I copy a file in my computer even a hundred times, it should
be exactly the same.
Unlike an analog dub, each copy should be "fresh" 1's and 0's. Does it
have to do with latent data errors? Say an erroneous DCT block was
saved thanks to CRC - will the error be copied to the dub, or a fixed,
clean version?
Thanks and sorry about the lengthiness.
-Drew
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