
Great info BrocktonBob

Another thing that may need to be changed is the -vf crop=640:480:0:0,scale=640:405 option

Some movies will have different crop boundaries. I use mplayer dvd//:1 -vf cropdetect to to get this info before ripping. 

Another tip is for the scale option. Here is your original code -vf crop=640:480:0:0,scale=640:405

Here mencoder can preserve the aspect ratio whether the movie is full screen or wide screen by using a -2 like so

crop=640:480:0:0,scale=640:-2

Hop these tips help



