anyone have any answers to freeze up problems aside from the obvious ones. dirt,scraches, hdmi cables etc. I have backup dozens of BD's on my Plextor PX-B940SA firm ware updated played them all back and they all worked fine. I just recently started to play them again and I'm now having freeze problems in the movies. I have tried store copy's and they work fine in the same unit a Sony BDP-S350. I was inclined to think that the player was the problem, but after preforming all the testing I feel its not it's not. This brings me back to when I first starting backing up DVD's a hundred years ago. I use BD Rebuiler and Any DVD HD. Always worked fine. Maybe it's just not an art yet like back in the day with DVD's.