I purchasd a used original xbox really cheap and it wud only play a few games and those that did play wud freeze up. I orderd this lens cleaner and the transformation was instant, plays all my games w no freeze. I also hav a few high end DVD units, one an expensive Samsung DVD recorder that stopped recording and playing discs and a Toshiba upconversion DVD player that stopped reconizing and playing discs. I popped the lens cleaner in and their both working beautiful now, I was going to throw them out. A great product, and I can use it over and over if I hav any other devices that stop reading and playing discs.