See comment: "I am in the US and I bought this disc. Although region free, it won't play on US PS3 players as it's encoded in 1080i/50hz. However, it played perfectly on my Oppo player. What a magnificent set compared to the POS that was the NBC Olympics highlights disc!"
Usually Amazon indicates when BDs are 1080i50. The problem is with US TVs that often require a 60HZ signal rather than a player problem. I have a Momitsu 799 player set for B/2 and forced 1080i60 output, so I can play such as disc.