Piracy: ꜱᴀɪʟ ᴛʜᴇ ʜɪɢʜ ꜱᴇᴀꜱ

Hi folks. Recently I have ripped some Blurays that I bought because I couldn't find them online. I'm using MakeMKV for that and it does a fine job decrypting discs to my harddrive. Most discs have a single or maybe two or three m2ts files that I could then convert to a mp4/mkv file afterwards using Handbrake.

However, some of the Blurays have a lot of m2ts files (in BDMV/STREAM) that need to be combined to a single result. From what I understand this is not mainly the film industry making my life hard on purpose, but there are different localizations of the videos in place (german, english, french, etc.).

I know there are playlist files in a separate folder (BDMV/PLAYLIST), and they probably are used to link all those video files together in the correct order. But I cannot seem to find tooling to read these files (in a Linux environment, that is).

I might not have the optimal ripping/converting process in place, yet - actually I'm pretty sure of that. But also I can't find much more useful information, right now. Is anybody able to help me here? I really don't want to go through hundreds of file manually, for some discs.