Thanks again FranceBB.
In short, the video is originally progressive film, but to pass it to NTSC VCD the owners instead of using 3:2 pulldown used something like ChangeFPS(30000,1001). This is the reason why there were repeated frames and video remained so progressive (I think that VCD is always progressive, no?).
All I did was revert the change with ChangeFPS(24000,1001). So repeated frames was removed.
Last edited by GMJCZP; 2nd July 2016 at 23:05.
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