Given the task definition and input, reply with output. Given an Amazon review, indicate whether it is a 'Positive Review' or 'Negative Review'.

I have many Verbatim flash drives and they all still work wonderfully without a hitch. I recently bought 4 32gb drives and they are have gradually failed. Verbatim emailed new drivers but they don't work either. My two year old 16gb is still rocking along. I believe they had a bad run or something. Will now battle it out with customer s service.
Negative Review