New CDs precoated with a slippery substance: since


I have not purchased any new CDs for years, but decided to aquire a few (50+) Blue Note RVG titles. (only because the LPs are impossible to find at reasonable prices)
I started to polish them and discovered they are all (except one) slippery already.
CDs used to arrive new with no coating and the surface had very high stiction. Only after coating them with a silicon product would they be "slippery".
Now all the CDs are already slippery.
So, when did this start happening?
(I have not purchased "new" CDs for about 10 years!)
And is this coating good enough, or do you find polishing them to still have some benefits
elizabeth

Showing 1 response by schubert