Posted by nobody special on 01/11/09 11:58

lt sounds like you're seeing the head-switching noise in the overscan
area of the analog signal...that's normal on an underscanned Tv
screen... normally your TV would hide this part of the picture tube so
you'd never see this artifact outside of the "safe action zone". In
digital video, sometimes it becomes evident unless it was cropped out
in advance. Some more sophisticated converters already take this area
into account, sounds like your setup didn't. When you put the footage
into an editing system, you can crop it out or blow up the picture a
few lines worth (which I think would add some blur and quite a bit of
rendering time, so cropping may be better). Save that step for last
afer all other edits and it should be relatively painless.

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