OK Thanks. Turns out it crashed because I was using your mkv, while the documentation states you have to use a BDMV folder, so I am currently copying the temporary blu-ray I muxed with your DeEd and all the subs from project Threepio. I am also downloading the other preservations other than Marvins' French preservation (there's a German and an Italian preservations, didn't find any other). I will try my hand at a bilingual crawl version first (EN/FR) and tell you if it works. Problem is my temporary Blu-ray is already 21 GB so I think it could be a "deluxe" version, requiring a BD-DL. I'll see.