Instruct: Classify Amazon reviews into positive or negative sentiment
Query: My COBY MP-CD521 turned out to be junk

I bought the COBY MP-CD521 which turned out to be very flaky. Most of the time it would not work with any disk. Once I got it to play a cd and then the second time that I tried to play the same cd it would not recognize it. Maybe you will be luckier than I was, but don't expect much.