Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Do you research before purchase

"12 Monkeys" is a great movie and should not be missed, but this Blu-ray has issues. I gave it as a gift to someone with a 2010 model Samsung player, and the movie is unplayable in the device. He was able to get a second disc from the manufacturer, but the new one did not play, either. Some research uncovered that many Universal discs, including this one, do not play on Samsung players.