Instruct: Classify Amazon reviews into positive or negative sentiment
Query: not for car cd players

I ordered this for my car cd player. Unfortunately the package states "this is not recommended for Car players". I decided to use it on a dvd player that abruptly stop working two months ago.( 8 yo/ dvd player) The dvd player wouldn't read any discs. I inserted the disc and pressed play. There's a user friendly tutorial to help you along the way. She clearly explains the what and whys throughout the disc optimizing and cleaning process. (Make sure your av cords are plugged in). The dvd player work!!!