Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DISCWASHER 1509 Home Theater Calibration Disc

This DVD is very good! Speaking as a 'seasoned TV/computer Tech' this DVD teaches you what your control settings do and where/how to set these settings for optimum performance. Then, as an example of what you should see when you experience HiDef, this DVD has a music video for you to view as well. Compared to 'others' - this DVD out performs and you will definately end up with a better picture viewing enjoyment.