See, all your methods use AviSynth.

First, I'm doing this on a Mac, which can't run AviSynth. Second, I don't know a damn thing when it comes to command-line stuff - I need a GUI in order to do anything.

My method is time-consuming, but I'm happy with the end results, so I'll just keep doing what I'm doing, which is essentially PAL DVD > MPEG Streamclip to 50i ProRes 422 > Final Cut Pro to fix the worst problem areas > new ProRes file > CinemaTools for 50i-24p conversion > Final Cut Pro to fix the rest of the issues that show up after conversion > Compressor to convert from 576p24 to 480p24. That's the simplified version, without going into the 4 audio tracks at all.

Also, this DVD is not OOP - it's just not available on its own anymore. It's in the Revisitations 1 box set.

And yes, the 4% speedup is absolutely present.