Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The Worst DVD masterring I've ever seen! A Disaster!

This is a horrorible disaster for the movie, the director and viewers. I can't believe that there exists a DVD company which produces this kind of work and puts it in market with any expectation of business.I know some Hong Kong DVD producers are not much concerned about the quality of works, but it is just beyond my expectation. The worst DVD mastering I've ever seen, and I don't think there would be any worse than this in the future. The No.1 DVD you should never buy, see, or ever try to!