#!/bin/bash 
mkdir HD
for i in *MTS;
do
  ORIGINAL=`basename $i .MTS`
  NEWNAME=${ORIGINAL}.avi
  /usr/bin/mencoder -vf harddup -demuxer lavf -oac pcm -ovc lavc -lavcopts vcodec=mjpeg:vhq:vbitrate=6000 -noskip -mc 0 -ofps 25 -o HD/$NEWNAME $i
done