Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective Disc

Disc played a couple of times, and then my player would no longer recognize it. I have a couple of hundred DVDs and they all play on this brand new Sony Blu ray player. I have contacted the seller, allenturner3, and have received no response. Beware of this product.Addendum: Seller, allenturner3, refunded my money when I returned DVD,