Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Returned them

When I opened up the package I noticed that the discs seemed thicker than normal. My wife and I tried to burn music on 3 of them them on two laptops -- good quality Toshiba and Asus laptops -- and once the CDs were inserted into the drive the laptops vibrated and hummed loudly. One of the discs did not want to come out of the drive. I'm glad they didn't damage anything. We returned them to Amazon. All other discs we have operate smoothly in those same laptops.