Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Buy the 50-pack instead

For DVD-R's, I'll use either Memorex or Sony. When I buy the 50-pack, I might have 2-4 discs fail to burn. However, when I buy a 100-pack, the failure rate increase to as many as 15. At times, I can run into 3 failed discs in a row. It makes one wonder if all the extra weight damages the discs or even the possibility that people are more willing to buy the cheaper 50-pack, leaving the 100-pack sitting on the shelf for who knows how long and it degrades. So, Sony may be a good brand, but I recommend opting to buy the smaller pack.