Posted by Richard Crowley on 03/09/06 15:11

Acurajustin1978> wrote ...
>I downloaded a British TV show in HDTV and it was in PAL. Using Nero
> to burn to DVD it barked at me and said the content is in PAL and I
> have it set to burn to NTSC. I told it to burn to NTSC since that is
> all my DVD player will play.
> When I played it, the image quality was perfect. There was some
> slight
> rasterization (?) but overall it was 90% there. I remember back
> during
> the VHS era there was this "flickering" effect on converted tapes
> thanks to the 25fps versus 30 (29.997)fps we use.
> My question is, why doesn't this happen on DVDs? Did things advance
> so
> far that that can extrapolate the missing data when going from 25 to
> 30fps?
> How'd they do that?

Likely using the same techniques that are used for movies
(which are shot at 24fps). Typically a 3-2 pulldown.

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