Although I have come across CDP where its own vibrations were anything but minor. Noisy motor and transformers gave it a nice mechanical hum all its own. But then again, in that situation, you should look into getting a new unit rather than trying to damp it.

BTW, one article I found said that actual music content on a CD only represents 30% of the information stored on a disk. The other 70% are for error management.

Gar.

What are the wooden balls supposed to do? Are they under the granite slab or over it?

I can see a granite slab sitting on top of a piece of foam or rubber, but not on wooden balls!

All this makes some sense - in a wierd, tweaky way - for turntables, but for cd players????

My "loose screw" comment was not very nice to make at a guy who was just trying to be helpful by giving an inexpensive tweak.

I can see that if you spent a lot of money for a granite slab, you certainly would not want any vibrations in the case, and you would appreciate the suggestion for an inexpensive cure, since you had already spent all that money on the granite slab...

• Granite slab source

My system sits on a #100 (approx.) slate slab (1 x 24 x 48"). My CDP sits on 4 1.5" wooden balls. The balls fit in the recesses of the feet to allow for some lateral movement. My amp sits on an additional piece of granite (1.5 x 24 x 24") sitting on the slate; the two stones are separated by a rubber plate.......Colin