I've been having a lot of fun with claude to build one off cli's / tuis to solve my problems.

I had this same problem and I got claude to whip up my own version of this tool built out with makemkv, ffmpeg, imdb api lookups, LLM-selection of the "most likely to be the primary track", and plenty of other features. Really fun time to be building small bespoke tools for yourself.

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