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They are region 1, but only Resurrection works for me - the other three don't have a single title containing the movie. Edit: It seems that the problem was that I used MakeMKV on a ripped version of the DVD (using RipIt on Mac OS X). Even though the ripped version works fine in a DVD player, somethi...

I'm having problems with the first three DVDs in the Alien Quadrilogy. There are two edition of each movie on each DVD and they are probably using seamless branching. Alien Resurrection appears as to large titles where one is the theatrical release and one is the special edition, but that's not the ...