Vibration Problem

Another possibility is that the vibration problems are from a suspended floor. Try moving your cdp/rack in the room corner and see if that helps. All the suggestions given above are to counteract airborne vibrations to the cdp chassis - one that's stationary. They do very little to help if the floor is moving.

Try mass loading the player using the sandbag trick, varying the amount of sand / weight in the bag. As Sugarbrie mentioned, you can always put the sandbag inside of some type of ornamental cloth covering.

As far as the inntertube goes, try sticking it inside of an open top wooden box with cones underneath that box. You can then rest another piece of wood over the top of the innertube and the CD player will sit on top of this. By varying the weight in the sandbag and how much air is in the innertube, you are able to alter the resonant frequency and amount of energy transfer involved. None of this will look out of place and you can use whatever type of cloth and wood that will match your decor. Sean
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Go to a hardware store and get some Mortite weatherstrip. Place it two layers thick on a flat board and insert it under your cd player, if that does not work try three layers. Make sure the Mortite side is against the bottom of the cd player.

2 3lb.Non magetic Stainless Steel blocks(bought for a few $ locally) polished to a mirror finish on top of my planet does the trick

If you are talking about actually skiping the player this is a lot of Bass or a really loose floor.

There are two main modes for speaker generated vibes, Floor born and air born.

Unless you have a concrete floor you are getting both.

To me sounds like you need to move the audio rack around, try an inner tube or other floating type isolation, and mass load the top of the player to nix air born shakes.

To mass load and have ok looks I used a large marble floor tile with a thin mouse pad under to protect the player.