Thanks and hope you don't mine all the questions. I think I have it now but I want to back up to one question:

>This actually brings up one of the long-standing challenges encountered by progressive scan DVD players when deinterlacing - some material started life at 24fps and some (such as many, but not all, TV shows on DVD) started life at 60fps.>

Do some TV shows do use 24fps cameras? I wonder how they decide if this is the case?

Bob