2 of the 3 discs were severely warped and unusable. One package was previously opened contained a white warped disc, with a lip that was unlike anything i have felt on an ultimate. The red one had two severe indentions on the top....they shipped me garbage....one disc out of 3 is usable. Im in correspondence with karen at whamo. I shouldnt have to go thru this....they have zero quality control. I have been a lifelong customer....i cant believe they shipped me there garbage that was laying around..