Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buy this from Amazon, not Best Buy. There's are defective.

I got this great 2 DVD set from Best Buy, and the menu doesn't work. Exchanged it for another one at a different Best Buy, same problem. I'm going to return it and buy it from Amazon. It seems like maybe Best Buy got a bad batch. I highly recommend this set for any South Park fan, just don't buy it at Best Buy. Just wanted to warn people.