As for as I am concerned, Sandisk should be ashamed of themselves, three units on five different computers, come on. You cannot tell me there is not a problem and brush it off like it's nothing. Was it a bad batch? Was it a bad product? I will never know because I never could get one to work. For tech support to not want to help me at first and to try and turn it onto Microsoft was just disturbing. After listening to the store's complaints about how they were treated and knowing how I was treated until I identified myself gives me the impression that Sandisk does not give a crap about anyone but themselves.