[MPlayer-users] How to correct pixel aspect ratio?

[Michel Bardiaux]

I have an MPEG-1 file that has been captured from a BTTV card using a 
size of 704x576, but the software (mine!) erroneously stored 1:1 as 
pixel aspect ratio in the file when it should be 54:59 (or is it 
59:54?). Is there a way with meplayer/mencoder (or any other tool) to 
produce (preferrably without any re-encoding) an MPEG-1 file with either 
the correct picture size (768x576) or the correct pixel aspect ratio so 
that the movie plays correctly?

Believe me, I have read and read and read the man mplayer before asking, 
but I could not find how to do what I need...

TIA,
-- 
Michel Bardiaux
Peaktime Belgium S.A.  Bd. du Souverain, 191  B-1160 Bruxelles
Tel : +32 2 790.29.41