I'd like just to know the source you taken the runtimes, are you sure they come from US FX official site? My source files taken from the same release (ripped from FX sites) says that the first 4 episodes and episode 8 have one minute less than the ones indicated (and locked) on TMDB, while the rest (6, 7, 9 and 10) matches. I think that if my files were wrong, all the episodes should have one-minutes-less runtimes or anyway something different.