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Posted by Joshua Zyber on 08/29/06 11:29
"John Lockwood" <john.lockwood@amtec.co.uk> wrote in message
news:C119D89B.12AC6%john.lockwood@amtec.co.uk...
> However converting NTSC to PAL (or vice versa) can slightly alter the
> speed
> of playback (to most people this will not be noticable), this might
> mean it
> takes slightly longer/shorter to play the same film or that if you
> carefully
> watched it a 'converted' playback might have a slight jerk every
> second.
PAL speedup has nothing to do with the conversion of PAL to NTSC or vice
versa. It has to do with the transfer of 24fps film to 25fps PAL video.
All film-based movies are sped up 4% on PAL video, regardless of whether
you watch it on a PAL display or converted to NTSC.
Film-based movies transferred to NTSC retain their original running
speed due to the 3:2 pulldown process.
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