Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disks won't even play!

These disks would not play at all in my car (my other discs played just fine). The disc player just clicked repeatedly while the info screen said "no disk" or "check disk" or "insert disk." Unfortunately, the series will have to be sent back. On a better note, though, my friend has done this series with her husband. They loved it and recommended it to me. I will be asking for a replacement so that my husband and I can still do the program.