Instruct: Classify Amazon reviews into positive or negative sentiment
Query: starship troopers and Panasonic DMP-BD50K

I have bought blu-ray disks starship troopers 1-3 collection. On my player has not play any disk. I have written the letter on Amazon.com. They have sent at once me replacement (Thank's Amazon!). disks 2 and 3 working, 1 does not work again. It only at me or someone else has faced this problem?