HandBrake is the best if you want to ruin all of your DVD encodes.

e: downvote if you want but I'm right and you're wrong lmfao

For anyone in the peanut gallery who wants a good deinterlacer, try QTGMC. It's originally an Avisynth script, but I use a VapourSynth port: http://avisynth.nl/index.php/QTGMC

Can you explain why it ruins the DVD encodes? I like this community to learn stuff