Hello all, I have a 3D blu ray .iso. I want to convert the main (3D) movie to a SBS 3D .mkv. I was going to add it to mkvmerge and convert it that way, however in the STREAM folder of the mounted .iso are hundreds of .m2ts files. I don't know which ones to add as I don't know which ones are the main movie and in what order. EXAMPLE I also tried adding the mounted .iso to MakeMKV to see if that would make a difference, but first got this error message: When I click YES, it asks me to pay for something or other. And when I click NO, this happens (see bottom left): So can anyone help me convert this to an SBS 3D .mkv without loss of quality please? Thank you in advance.