[MEncoder-users] How to encode old B&W movies efficiently ?

[Emmanuel Merliot]

Hi,

newbie question :

I tried recently to grab some old movies with the following option : 
greyscale.
Unfortunately, it appears that the result has the same size as a "coloured" 
movie. I expected that this option could reduce its size, as 256 colours 
encoding is 8bits depth instead of 24bits depth ...
In fact the result file is actually gray scaled !
What's wrong ? Is there another option i missed ?

Thanks in advance.

Best regards.