Mine

#!/bin/bash
mencoder $1 \
-o $2 \
-srate 44100 \
-oac mp3lame \
-lameopts vbr=0:br=128 \
-af volnorm \
-ovc lavc -lavcopts vcodec=mpeg4:vbitrate=468750:vpass=1 \
-vf-add scale=400:240 \
-ofps 30 \
-ffourcc DIVX -noidx \
&& \
mencoder $1 \
-o $2 \
-srate 44100 \
-oac mp3lame \
-lameopts vbr=0:br=128 \
-af volnorm \
-ovc lavc -lavcopts vcodec=mpeg4:vbitrate=468750:vpass=2 \
-vf-add scale=400:240 \
-ofps 30 \
-ffourcc DIVX -noidx