SACD Warning--"Do not use liquid cleaning..." ?

I clean all my discs with distilled water and a tiny amount of pure liquid soap, just to break the surface tension of the mold release

I used to use various cleaners and polishers but over time they oxidize and roll everything off. Not a big eal, as simple to wash, repeat

I admit that I never clean discs unless they won’t track.  With CDs I use isopropyl alcohol and wipe with the tissue that opticians sell for Frac lenses and that has always worked.  Although I own over a hundred SACDs I don’t remember having to clean one until I had loaned a recording of Mahler/5 to a fellow Audiophile who wanted to explore both the Composer and SACDs (Zander/Philharmonia on Telarc)).  When he returned it he said that he had cleaned it with some special highly touted commercial cleaner that was expensive and he only reserved for his finest discs.
  The disc was unplayable, in 3 different players, on either the SACD or the CD layer.  After letting it sit for a few days, with no improvement, I tried isopropyl and it was fine.

This is the first time that I have read about this issue. I still buy a lot of used CDs and I’m often shocked at the condition. Fingerprints are nothing compared to the ones that look like they have been walked on. I use Novus products to clean them. Novus #1 is for "Clean & Shine", and the #3 is the "Heavy Scratch Remover." I have no connection to the product line but I have used them for many years. Candidly, I have not used either of them on my SACDs. When I find them, which is rare, they are usually well cared for by the previous owner. I’ll have to read the label if I ever decide to clean any of my own SACDs. Thanks for the warning!

I find that Windex works very well.

Turtle Wax (for cars)