Instruct: Classify an Amazon review into positive or negative sentiment.
Query: This DVD is the best!!

Do yourself a favor and purchase this collectors item. It is truly Roy Orbison at his best. The 5.1 digital sound was great. The backup singers were on the back speakers,while the singing and band were on the front. The sound could not be any better, it was like being at the "live" concert sitting in the front row. Also the Amazon.com service was excellent.