Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Start out great... NOT ANYMORE

When I first bought this machine it worked great and I had nothing but glowing comments about it. Then it started to malfuntion with the "dirty disc" message so I switch to Sony DVD-R and that stopped. But, then it started to not read and burned discs at all. Now it won't read ANY disc and the dics that I burned from old tapes won't play on ANY machines. I'm glad I saved all my old tapes.I see that they have discontinued this model. That ought to tell us something. I expected better from Sony.