On Wed, 2009-01-28 at 17:36 +0100, Simon Eugster wrote: > Ah. If PAR = 1 and the size is 800x600, then DAR = 800/600. PAR = 2:1 > (width is 2x height) means DAR = 800/300 = (800/600) / PAR. Isn't it? Yes. PAR = pixel aspect ratio DAR = display aspect ratio Kind regards, JM