I put this into my LG DVD player and it got to the menu screen then stopped working. I then put this into my LG Blu-Ray player and it didn't even start working. Other reviewers have complained about the same problem, and unfortunately I did not listen and decided to take a punt, DOH.
What I really don't understand is how a lens cleaner can work on some makes of DVD / Blu-Ray player and not on others, I don't have DVDs that will only play on certain makes of DVD / Blu-Ray player (there aren't Panasonic or Sony only DVDs!).
That aside, I had never purchased a lens cleaner before, it is really just CD with some very small brushes stuck to it. Even if it had worked, it isn't worth the price.
The item is now on its way back to Amazon.