[Five]

Originally Posted by range_hood

I also use spindles. And if you take care as AAR.oner said you´re on the safe side. You might have found this sort of ring on the downside of a cd. It takes the surfaces apart. So unless there´s no dirt in between - no problem, as said.
Below: some sort of attempt of printing a cross section of a cd (inner part).

Is that a tiny plastic ring you're talking about or the fake plastic disc that is included?

I use spools, there must be a better way but it helps to conserve space.

sharpies are safe for writing on cdr/dvdr media I just write all over those things. maybe one day I'll live to regret it, but everything has been good for years now.