Don't waste your money
This solution is only filtered water and a tiny bit of isopropanol alcohol. I expect the alcohol is only there so they can say they sell a solution and not just water for almost $3.00 per ounce.

I am an optician and was an optical lab technician for several years. To edge polycarbonate (the same material disks are made of) straight water is used. Distilled would be best and is way cheaper than buying this solution.

Works For Me
I've been using my manual crank Skip Doctor with this fluid for years & have had great results. Other online retailers carry it for a lot less but hefty shipping charges. The comments about making your own are irrelevant - if you get the concentration wrong you'll screw up your discs big time.

Make your own solution
Assuming this is the same liquid in spray bottle that came with my Disk Doctor kit, it's just distilled water and a little alcohol (denatured or isopropyl, makes no difference). Make your own --that's what I've been doing, almost free. What they really need to supply with the kit in addition to the abrasive wheels and water lubricant, is a very fine buffing compound for final finishing, like the MicroGloss plastic polish you can get from Micro-mesh corporation -- but expensive! Meanwhile, I've been final finishing my treated disks with a very mildly abrasive car wax like Black Magic or NuFinish to give finer surface than the Disk Doctor does.

Great Resurfacing Fluid
I Bought this Resurfacing Fluid for my Skip Dr, Cd, DVD, and Game Repair Kit worked great, Im happy with it, I don't see a problem with this Resurfacing Fluid, I had a cd full of fingerprints and Scratches and this Resurfacing Fluid did it all and now it looks like new, It's not expensive to me i thought it was a great deal, Finally i could buy the Resurfacing Fluid alone without buying the whole kit together, Also im glad that i could buy the Resurfacing wheels alone,


Peace

Pretty Expensive Cleaner
I bought this product as I did NOT know what else to use and think it's VERY expensive for what it is.
If you investigate this product you find out it's only a distilled type of water with a tiny amount of alcohol(less than 1%).
The bottle is probably the most expensive part.