mencoder -of mpeg -mpegopts format=dvd:vaspect=4/3:vframerate=30 -srate 48000 -ofps 30000/1001\
-ovc lavc -oac lavc -lavcopts \
   vcodec=mpeg2video:\
   vrc_buf_size=1835:\
   keyint=18:\
   vrc_maxrate=9800:\
   vbitrate=4900:\
   aspect=4/3:\
   acodec=ac3:abitrate=192 \
${VIDEO}.avi -o ${VIDEO}.mpeg2