Re: Chapter marks not where specified.

On Wed, 28 Mar 2012 16:25:50 +0100, Tom Brock wrote:

> Even with NTSC, I've often wondered which is right, the 29.97 fps
> figure or the 1.001 fudge factor that is supposed "correct" for its
> not being exactly 30 fps.

The answer, as I understand it, is the actual, original broadcast frame
rate is 30/1.001 fps. However, for timecode purposes, the frame rate is
taken as exactly 29.97, which means the NTSC timecode clock differs from
actual time by about one part in a million.

My guess is, all current digital video recording/playback equipment is
using actual time for the timecode clock, so the actual NTSC frame rate
is now 29.97 for all purposes.

------------------------------------------------------------------------------
This SF email is sponsosred by:
Try Windows Azure free for 90 days Click Here 
http://p.sf.net/sfu/sfd2d-msazure