Brought 2 photosticks and started copying pictures from my laptop to the photostick but I kept corruption errors. I i tried both sticks on 2 different laptops and the result was the same corrupt data. CHKDSK reported 100s of corruptions. For something which is supposed to be a backup solution I would not trust this device, it's rubbish and is miss sold. I'm going back to a good old reliable external drive.Don't wasteD User's recommendation: Save your time and money and stay well away from this device.