Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointed

Having two Sony CD players fail me I decided to step into a Yahama Disc Player. The sound quality is superior to the Sony but as soon as the unit heats up from use it begins skipping tracks. I have not been able to succesfully play one single cd to the end. Now i have to go through taking the wiring apart, reboxing it, getting an exchange, paying postage and realizing, in all likelyhood, the replacement will perform the same.