[MPlayer-users] How to fit video, in mplayer, to full screen keeping aspect ratio and adding the black bars - without stretching

[Marcin 'Rambo' Roguski]

> > This works except it stretches the image to fit the screen in both
> > directions.
> 
> Strange, because it works for me and for many others.

OP doesn't mentioned intended and actual monitor resolution, so I guess 
there's the problem.