[MPlayer-users] help wanted: using mencoder to make NTSC DVD from transport stream

Mon Mar 7 07:33:07 CET 2005

On Sunday, 06 March 2005 at 02:48, Ville Saari wrote:
> On Sat, Mar 05, 2005 at 07:33:02PM -0500, D Richard Felker III wrote:
> 
> > it later), but be sure to use -lavcopts aspect=16/9 so the final file
> > is marked as having 16:9 aspect.
> 
> The correct lavcopts aspect for the so called "16:9" DVD is not 16/9,
> but 144/79 for NTSC or 640/351 for PAL. Those ratios are about 2.5%
> wider than 16/9 because DVD (or D1) image contains a few pixels of
> horizontal blanking area that is not counted as part of the 16:9
> picture.
> 
> This of course applies to 4:3 image too. The numbers are 108/79 for
> NTSC and 160/117 for PAL.

Are there any official docs supporting your claim available on-line?

R.

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