PSP video encoding with FFMPEG

For 4:3

ffmpeg -i in.mp4 -acodec aac -ab 128kb -vcodec mpeg4  -b 1200kb -ar 24000 -mbd 2 -4mv -trell -aic -cmp 2 -subcmp 2 -s 320x240 -r 30000/1001 -title X -f psp J:MP_ROOT100MNV01M4V10001.MP4