Cheap tweaks...What would YOU reccomend?

Go to the local hardward store and buy a rubber mat for a couple of bucks. Trace a CD around and include the spindle hole. Take a good pair of scissors and cut it out. Put it atop a CD when you pop it in the deck. If the player "fusses" a bit, cut a small wedge (approx 1 mm) from the edge of the "disc" to the center. The reduction in weight should make it more "palatable" and acceptable.

Result: Instant anti-vibration mat for CD.

Improves lower end's coherence and assertiveness as well as overall presentation.

Works with my Marantz. So far, so good....

That's a good thought, Tbg; so far I have not perceived any ill effect on speed or stability. Now and then, the player refuses to read, but sonically there seems to be an appreciable difference.

Again, this was done as a spur-of-the-moment experiment that has not been subject to quantitative analysis etc.

In the meantime, I'll rotate the jacks....

Thanks for the caveat, nevertheless!