[MEncoder-users] Flashvideo for YouTube using mencoder

[Andy Civil]

Rich Felker wrote:
> This is incorrect. The correct value is 30000/1001.

Rich, I'm totally NOT arguing - simply curious.

The difference between 29.97 and 30000/1001 is one in a million 
(literally). Just to give some scale to this, if Ben used the wrong 
value for his 16,380 frame movie, the last frame would be "mis-timed" by 
about 1.638% of a frame. Since people frequently send out 24p content at 
PAL rates by squishing the audio and getting away with it, this doesn't 
seem like much. Similarly, if you had a TEN HOUR video, and coded the 
video at 29.97 and the audio at 30000/1001 you would be "out of synch" 
by a whopping (read: barely noticeable!) 36ms at the end of it.

So why is it such a big issue? The only possibility that I can think of, 
is that there is a comparison in software which says "is the frame rate 
the same" and you could falsely decide "different" when actually "same" 
would be correct.

-- 
Andy