After reading some reviews and getting recommendations on wet vs. dry head cleaners I decided I'd try both to clean the heads in my Panasonic VHS/DVD combo player. I've had the unit for more than 3 years but never cleaned the heads until now. I ordered this wet head cleaner, and the Maxell VP-100 dry head cleaner. This one arrived first just before Memorial Day weekend. The first thing I noticed when taking it out of the box was just how flimsy the cassette felt. I've used wet head cleaners in the past, and they always had a bit of weight to them. Almost like a regular cassette. The next thing I noticed was the shoddy assembly. The top of the cassette is solid, so you can't see the spools, but it's a good thing I looked at the underside of it carefully, because one of the wheels was halfway off its "track" and needed to be pushed (hard) back into place. I hate to think what might have happened had I just put it in the VCR like that! After opening the cleaning solution I tried to put the 5-6 drops in the top hole as it instructs but the first drop just formed a bead atop the hole! There would be no putting anymore in until we got this one thru. After fussing with it (and having the red ring around the hole just pop off!) I finally got some more drops of what is clearly water into the hole, and loaded the cassette into the player. WOW! The racket this thing makes! Buzzing, clicking, ka-chunking, you name it! If any of you have had VCRs for a while you know that sickening sound the tape makes as it's tangling itself around the innards of your machine, and getting chewed to Hell and back. This one made that sound, and I thought for sure I'd have to disassemble my VCR to remove it. Fortunately, it didn't jam, but it didn't PLAY either! I'd say maybe 2 seconds tops before the the whole thing wound down and just stopped. So much for the "Run it for 20-30 seconds" in the instructions. I ran it several times for as long as it would allow, usually just a couple of seconds. After loading a regular tape I'd been trying to copy to DVD I saw that the picture WAS clearer, without the snow and graininess from before I cleaned, so I guess it DOES work, as long as you're willing to run it several times in a row to get a full cleaning cycle.