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<blockquote data-quote="knutinh" data-source="post: 276279" data-attributes="member: 14776">Movies are normally filmed at a rate of 24 frames per second (fps)Television/video systems are usually run at a frame/fieldrate of nearly 60fps (USA/Japan) or 50fps (the rest of the world).Computersystems are (after LCD-screens became the norm) usually operated at &quot;exactly&quot; 60fps.What happens when a video-file that is 24fps or 50fps or whatever is played on a screen that is 60fps? Several things might happen. The movie may be played frame-for-frame (faster or slower than real-life), but this may mean that audio and video is out of sync after a while. Or the video may be &quot;frame-rate-converted&quot;, usually by repeating or dropping frames. This leads to small &quot;jerks&quot; or &quot;stutters&quot; in the video, especially visible on the scrolling text after the movie, or slow camera pans.For more info:<a href="http://en.wikipedia.org/wiki/Judder#2:3_pulldown" target="_blank">http://en.wikipedia.org/wiki/Judder#2:3_pulldown</a>-k</blockquote>

[QUOTE="knutinh, post: 276279, member: 14776"] Movies are normally filmed at a rate of 24 frames per second (fps) Television/video systems are usually run at a frame/fieldrate of nearly 60fps (USA/Japan) or 50fps (the rest of the world). Computersystems are (after LCD-screens became the norm) usually operated at "exactly" 60fps. What happens when a video-file that is 24fps or 50fps or whatever is played on a screen that is 60fps? Several things might happen. The movie may be played frame-for-frame (faster or slower than real-life), but this may mean that audio and video is out of sync after a while. Or the video may be "frame-rate-converted", usually by repeating or dropping frames. This leads to small "jerks" or "stutters" in the video, especially visible on the scrolling text after the movie, or slow camera pans. For more info: [url]http://en.wikipedia.org/wiki/Judder#2:3_pulldown[/url] -k [/QUOTE]

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