I could not believe too before you buy, but I recognize that it worked on 2 DVD video that everyone had been struck a small area with a PC player and what prevented read some episodes. By cons, it should be clear that we must use a type of microfiber fabric for window to move the product, otherwise you risk rubbing remake of micro-scratches (that I had on one disk, but not Using a microfiber). In any case, it worked as scratches were quite ugly, so satisfied.
