Hi…
to chime in on the whole HDV thing…
HDV in an editing expereience is not the same as HD or even DVC Pro HD if you want to work with a chaper compressed format.
HDV compression scheme is much like that of DVD…where material is stored in goups of pictures GOP instead of individual frames (like DV, HD, SD, or DVC Pro HD)….
this allows for siginificant bandwidth and storage reductions…so cost is lower, BUT…
It makes CPU’s work really, really hard…
Ironically some systems that have no problem doing real time effects with HD have a much harder time with HDV…
that’s why many systems that claim to work with HDV don’t do so natively, but rather transcode the ingested HDV stream into an intermediate frame based format…makes it it easier to chug through…
basically…you’ll start seeing those render bars pop up pretty quick using HDV with even nicely equipped machines doing software based editing…
So you may want to digitize in the DVC pro codec, if you system allows the option…
or you’ll need an external converter on the way in….AJA is a good choice here…
Yes…you can tell the diffenence at the end of the day…particularly if the stream gets crushed again by the local cable companies encoding the stream to delvier to their digital customers….(Yikes)…
but in most cases while not as good asa true HD….it still looks better than SD… 🙂
hope this helps….
Alex Udell
Editing, Motion Graphics, and Visual FX
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