Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Kingston 16gb DataTraveler - virtually useless

I don't understand the good reviews on this product. I bought two a couple of months ago because of the price and the Kingston name, but I'm getting rid of them and going back to Sandisk or Ridata drives.I can't use these in any fashion where I want to play videos or mp3s off them. Either in my Oppo DVD player with a flash drive slot, or in any USB enabled audio device - it simply skips or won't play media files. Every other drive I've ever owned allows me this function, but these just die when trying to read music of video.Other than that, I've never liked the cheap feel of the case or the slider on the back.