Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Cheaper than Ritek, and you get what you pay for

I have two DL burners, an NEC and an HP. I've used hundreds Ritek/Ridata DL discs, and over 3 years, I've generated maybe only dozen coasters. Very low failure rate. But I was feeling a little cheap this time around and went for the Memorex low price. Bad move, because out of the 25 discs, half are coasters, both from my NEC and HP drives. I'm going back to Ritek/Ridata.