This is not a amazon problem but sandisk issue i have a 8gb cruzer micro and thought i would upgrade for bigger files but when copying to it i am getting 2.6 m/bs using windows vista or windows 7.
My cruzer micro is 10m/bs. i contacted sandisk and all they said was its normal buy an extreme version they were not bothered.
it works but very slowly
so be warned.!!!SanDisk Cruzer Slice 16GB USB Flash Drive