Can anyone explain my NTSC, NTSC Film confusion?

Discussion in 'MPEG-1 and MPEG-2 encoding (AVI to DVD)' started by Magic, Mar 24, 2003.

  1. Magic

    Magic Member

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    When I download a film I go into Virtual Dub to check the frames per second.

    If the file is an NTSC_FILM I will convert it on TMPGEnc to NTSC_FILM film mpeg. The converted file is slightly jerky.

    If I ignore Virtual Dub and just convert to NTSC I get a far smoother result.

    Why? Whats the point of NTSC_FILM is NTSC works well for everything? Am I missing something?
     
  2. Dela

    Dela Administrator Staff Member

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    NTSC FILM is 23.97fps wheras NTSC is 29.97fps. NTSC is used more than NTSC FILM!
     
  3. Magic

    Magic Member

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    I realise the physical differences. I want to know why the AVI-MPEG convertion behaves the way it does.
     
  4. Dela

    Dela Administrator Staff Member

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    Well id say its more the playback of the mpg file! NTSC FILM seems ok with AVI but shaky with MPG. Its stramnge though, you would think converting to the same framerate it would be better!
     

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