Instruct: Classify Amazon reviews into positive or negative sentiment
Query: All bad.

I have burnt several discs from this stack and none of them work. They are all dead. The disc will burn successfully, but it will not read anywhere. K3B cannot even verify the burn.Really disappointing. The $14.99 price tag is too good to be true. Have had really bad luck with these, returning and buying Memorex, which I've used successfully the last few years.