I rarely write reviews but wanted to share my experience with this product. We've had a Pioneer surround sound system for about 6 or 7 years used almost daily. It became noisy and recently it stopped reading some discs and had trouble reading others. It was getting progressively worse so I just thought it's time had come so I started shopping to replace it but forgot how expensive they were which led me to give this a try thinking considering it's cost what did we have to lose. Very easy to use and did the trick. For about $7.00 and 4 minutes of work we are back in business. They're are no instructions that I could find but I just popped it in and it started on it's own. It's very quiet so it may seem it's not doing anything but it is so I just left it alone. It cleaned for a couple of minutes then tested each of the speakers and told me when it was done. Do be a little careful however because on the disc down side (shiny side) there are 3 little tiny protrusions which are the brushes so I would use care not to touch or damage them when removing the disc.

I never thought this would work, but it WORKS!!! The DVD player in my 2006 Honda Odyssey suddenly stopped recognizing the disc - in the middle of a movie!!! I tried reloading it a few times, tried other discs, and nothing worked. After a few seconds, the discs just ejected. I had no warning that there was anything wrong with the player and it had never given me trouble before. There was usually a disc in the player, but we only use it on road trips. I tried the Maxell DVD cleaner because it had good ratings and comments and it was the least expensive first step to fix it. Luckily, I read the comment about the mini-brushes on the DVD and how they're supposed to be there. When my son first saw them, he was about to try to pick off the 'defect', and I knew enough to stop him. Do NOT pick off the mini-brushes - they clean the player!
I put it in the player and after a few seconds it just ejected - like the movie discs. I tried again and this time it took longer before getting the error message, and I had to manually eject it. Third time's the charm because the menu came up, I let it run through three times to be sure. Then I put in the same disc that failed mid-movie and it worked perfectly.
I used it on my portable DVD player and it works beautifully again. Best investment ever for the care and feeding of a DVD player. I could not be happier with it and it saved me several hundred dollars for a new in-car DVD player! Thank you, Maxell!

DO NOT PICK AT THE 3 LITTLE BUMPS ON THE PLAYING SURFACE.

The Maxell 190050 DVD cleaner came quickly. I opened it up & found no directions written inside the case. Dust cover paper said instructions on rear; so after some tugging, I got the paper out & looked at its back for directions. The DVD enclosed had 3 little bumps on the playing surface, which looked like defects in some plastic surface. So I mistakenly picked at them to smooth them out. But that may have damaged the micro cleaning brushes. They don't look like brushes, but tiny defect bumps on a plastic film surface. Directions say to replace product when brush (singular) becomes visibly worn. I don't see any brush anywhere. I thought maybe it was missing until I noticed on the front dust cover it says, "3 Super fine microfiber brushes." So I figure those 3 bumps must be brushes, but I haven't got out a microscope to look to see if they in fact look like brushes.

I ran the disc as directed. The disk played & showed directions on screen and video pictures with a menu of choice: like 1) clean disc 2) check L audio speaker , 23 check R audio speaker , etc. So my DVD player was working to the extent that I could see this menu & heard the classical musical background & watch stuff like clouds floating, plants & insects in a video, while it supposedly was cleaning. But when I got thru on first run, my DVD player would still not play my video DVDs. But then after running the cleaner about 3X, I could now play my DVDs. But after running the disc around 20X, it still would not write on the discs, that is, I still could not record onto a DVD. It could be my fault for not reading the dust cover carefully and having picked at the bumps. But I am next going to try Memorex which advertises 6 brushes, but costs a lot more.

Of course if the cleaning does not result in fixing your DVD player / recorder, that proves nothing, since there may be some other malfunction causing your player/ recorder not to work (for example, you might have a bad capacitor on a circuit board). Thus I wish I could make this review "Comments Only," but you have to assign stars to post a review.

My main beef is lack of warning on the bumps when you open the case. There should be a piece of paper or warning on disc that says, LEAVE THE 3 BUMPS ON THE DVD ALONE; they are tiny cleaning brushes.

UPDATE:
I bought the Memorex LASER LENS CLEANER FOR DVD ( 32028015 ) after the Maxell did not restore burn/record ability. The Memorex has more microbrushes that the Maxell. After ~ 1 minute of cleaning, the Memorex restored the DVD burner/recorder so that I could now copy titles off my hard drive to my dvd drive (Pioneer DVR).

Took 3 times so, so hang in there. I must have had a great deal of dust on lens. After unpacking Blu-Ray player (moving to different state), LG player rejected all discs "No Disc". Now DVD's and Blu-Ray play fine. Just be careful with those tiny brushes on the bottom.

Yay!! For less than $10.00, my 11-year-old JVC combo DVD/Tape DVR is now working as good as new. (Well, for DVDs anyway. I no longer own a single tape.)
Great product!