Re: Dvd Frame questions?

In article <[EMAIL PROTECTED]>,
Peter Mason <[EMAIL PROTECTED]> wrote:
>I notice that when I frame advance certain NTSC dvds that there is a
>change in movement between every frame(the newly released NTSC version
>of "the Adventures of Robin Hood" behaves this way) I notice on other
>film originated NTSC dvds including some of the extras on the "Robin
>Hood" dvd every 4th frame is repeated. In other cases when you
>transfer the Dvd to VHS video the transferred VHS tape repeats every
>4th frame but the original Dvd doesn't; when you use the frame advance
>there is a change in movement for every push of the "frame advance" on
>the original dvd.
>
>Can somebody kindly inform me as to what is going on here?

This is the wonderful world of pulldown.  When stuff is originally
shot on film at 24 fps, and then released as 30 fps video, some rate
conversion needs to be done.  This is why the movement is so jerky
on most transfers.
--scott
-- 
"C'est un Nagra.  C'est suisse, et tres, tres precis."