Bummer, Just got my copy of The Flash watched the first episode and 4 min before the end, it froze, then started at chapter two of the episode. ARRRGH! - no sign of damage to the disc. I'm returning to Amazon for a replacement and hoping that it's not a defect in the run.
A little disappointing, at least on the first disc, all extra's seem to be available only to DVD-Rom and there are no episode menus. ( I can't believe they did that). I had to next all the way through the episode to the next to the last chapter (about 15 min intervals) then FF to check the damage on both my machines.