Episode 4, about 8 minutes in, the disc froze for a second or two. I immediately activated the layer indicator, but it was not a layer change. I scanned around the scene, and got the freeze a few seconds before or after where I first got the freeze. I finished watching the episode, and went back to that scene to get the exact time so I could post it here. No freeze. What should I do? Chalk it up to a random anomaly and not worry about it? Take it back to Best Buy for an exchange? Clean the disc? Or, should I keep an eye on it for a few days before doing anything?