[Color Space]

This option influences the color space conversion of display and AVI output.
Most MPEG-2 streams are based on YUV 4:2:0 format.
It's necessary to be converted to other popular format for display and edit.

YUV 4:2:0 -> YUV 4:2:2 -> {DirectDraw YUY2 Overlay} -> Huffyuv, MPEG-4, DV
YUV 4:2:0 -> YUV 4:2:2 -> YUV 4:4:4 -> RGB 24-bit -> {GDI Display} -> most codecs

The processing speed of [YUV 4:2:2] is much simple and faster than [RGB 24-bit].
However, it's not widely supported by video codecs and display cards.

If YUY2 Overlay is supported on your system, DVD2AVI will switch to [YUV 4:2:2] automatically.
Otherwise you won't see anything when previewing by [YUV 4:2:2].

VFAPI is based on [RGB 24-bit] always (for maximum flexibility) no matter which option is selected.

這是dvdavi 1.74內的說明