So far all my BD ISO files either play from the beginning or have issues right off the bat so don't have any made that only play the largest file. I do know that my copy of UP plays that way in my Live but picks up the beginning and plays the whole movie fine in the Aios, it also support chapters but no menu.
Maybe the folks with issues need to convert to something that supports chapters for the affected ISO files even though that is a bit of a hassle at least they could make it work. I do know one thing that's a bit weird about my ISO of Up is that it picks Spanish titles even though the subtitles are English and so is the audio track.


















