Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Boycott UntraViolet Downloads

DO NOT SUPPORT ULTRAVIOLET!Their format is not compatible with all digital and streaming devices. It is not compatible with APPLE TV.DO NOT SUPPORT ULTRAVIOLET!The movie was entertaining, although the book was much better. I'll wait to see it again on HBO or buy it on iTunes.DO NOT SUPPORT ULTRAVIOLET!