[MPlayer-users] Greyscale "tricks"

[Jan Knutar]

>  Are there any more options to mencoder to save file size/to increase
>  quality others than the grayscale encoding option for the lavcodec --
>  not only concerning colorspace?

Well, what options are you using?

As Matthew already said, the colourspace normally used is YUV, in which 
Y already is "Black and White". The human eye/mind doesn't really 
distinguish colour all that good, so the UV of YUV is already quarter 
resolution compared to Y, even before getting compressed, so you don't 
save as much space on leaving out colour.