The CD player in our 2001 Toyota Avalon would only randomly play PC-burned CDs.  It would reject them outright or they would skip once started.  The problem was not the computer's CD burner, as the CDs played on our 03 Avalon's player as well as on other machines.  Manufactured CDs seemed to play fairly well. (We burn Audible books to CD for listening.)  This product did not fix the problem; in fact, there is no difference in the player's behavior for having been "cleaned".  The problem could well be a slight misalignment of the laser or something else, but be aware that this is not a cure for all ills.  Two stars because it might work well for some, and is not necessarily mislabeled - but it did not work for me and I would not recommend it to a friend without a cautionary note.