Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DO NOT WASTE YOUR MONEY

This machine is worthless. It worked on two CDs and completely stopped working. The copies I make now don't play on most of my other machines, and when they do, they have skips and distortion. The manual is completely unhelpful. Harmon Kardon technical support is nonexistent. I wasted $500 on a system that does not work. Please don't make the same mistake. Either try a different brand, or wait a year until they get the technology right.