--- mk_vmgm.orig	Wed Dec 14 10:10:24 2005
+++ mk_vmgm	Wed Dec 14 10:09:27 2005
@@ -655,6 +655,7 @@
 	encNorm="p"
 fi
 ppmtoy4m -n 10 -F "$encFrameRate" -r "$workbg" | \
+	y4mscaler -O chromass=420MPEG2 -O size=SRC -O sar=SRC | \
 	mpeg2enc -a 2 -n "$encNorm" -f 8 -o "$videotrack" || error_out
 mplex -f 8 -o /dev/stdout "$videotrack" "$audiotrack" | \
   	spumux -v4 "$spuxml" > "$menumpeg" || error_out