Instruct: Classify Amazon reviews into positive or negative sentiment
Query: POWER BOX with CD Player

I purchased the Power Box Advanced at the end of December 05. When the unit arrived I unpacked it in my house and tried it for a week. It would not play a CD without stopping, even a new unwrapped CD. I contacted Bosch and received a replacement unit. The replacement unit played CD's every day for 2 weeks then repeated the problems of the first unit. I purchased the unit for the CD function, but have been unable to get a unit that will play CD's without failing. The unit keeps spinning the CD, but will not play sound. Both units will not recognize a CD in the drive after this failure. I will try one more time to get a unit that plays CD's.