tdx2k2.nfo W-H-modul multiple 32 16 4 2?

[hubereevez]

Hi,
at first sorry, I think this question was answered 1000 bilions times, but I searched in the forum and was not able to find an answer...
Why must the resolution be a multiple of 16 (divx5 can W-modul 4 and H-modul 2 min). With 4 and 2 the comptest may be more accurate and the aspect error minimal...not?
Is this the same way with xvid.
thks
hubhub
PS : I saw an answer posted related to overlay (overlay may not function with these resolution on certain Grafik card)

[hubereevez]

Anyone, please......?

[gabest]

Some video cards can't switch into yuy2 if the width is not multiple of 32. But the reason is still unclear to me.

[hubereevez]

Okay, so I can encode with 4 and 2 multiple.....considering that my video card support yuv2 with this resolution (overlay function works, but how can I be sure that Yuv2 is supported?)....but is this the reason why all guides mention : "encoding at last with 16 multiple?"
thanks ( vobsub is really amazing!!!!)
hubhub