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Title: DO NOT BUY it will ruin your discs
Review: We bought this device to clean some dvds that contain research data. Before using the device, I was able to play the DVDs on the computer but got a CRC error when I tried to copy the disc to an external hard drive. Now I cleaned the disc a couple times and it doesn't work at all on more than one computer and freezes the My Computer window when you put it in. DO NOT BUY this product unless you like wasting your money and completely ruining your discs. Regarding comment from another user, I did follow the directions exactly. Unfortunately we didn't test it out on one disc and went ahead and ruined 8 of them before checking to see whether the device was working or not.
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