Andrew Church wrote: > Actually, there's no need to set the frame rate at all when using a >frame rate code, so the right parameter is -f 0,4 (now fixed on the wiki). >That's a good question, I wonder why somebody thought 24fps was the NTSC >TV frame rate... > > >
Not sure if it's relevant, but 23.976fps is the rate at which 24fps movies actually run on the NTSC television system after the so-called "3:2 pulldown". This is due to the actual NTSC frame rate being 29.97 fps, not the 30fps that you might have expected (long story.... don't ask!). I would not be surprised to find that these same strange numbers have been perpetuated into the spec for U.S HDTV, even though there is no technical reason for it. Steve.
