Is it more difficult blue screening in HDV?

If one is doing color correction, is it best to do it in native or another codec, like Apple Intermediate?

thanks,
elmer

You might consider doing a green screen instead of blue. There is less noise in green channel...

Also green is less likely to occur in your subject - unless it's St. Patties day.

On CC. To correct color, the image must decoded, corrected, then re-encoded. The best time, therefore, would to do it at the same time as all your other editing, thus only one decode, recode cycle.