New HD DVD Player - which isolation device to use?

Herbie's isolation devices are minor miracles. I'm using the iso-cups with ebony balls under a couple of amps with great success. But lighter components, such as CD & DVD players, transports, etc., tend to slide around on top of the balls when you change discs, so I just use Herbie's tenderfeet under those. Four tenderfeet under my DVD player have improved the picture as well as the sound.

Like that "Mac the Knife " song--"The cement bags are there for the weight"--Thus my sug, "some weight on top of the player" is a good thing,iso cups or not. .

A friend and I recently tried some 3/8" thick, 1 1/2" diameter, 40 durometer sorbothane discs under his CD player, then his preamp, and finally his amp. Each step made a nice audible improvement to the resolution of his system. He called it the most inexpensive no-brainer he has encountered in audio.

I have some sets of four available at a very reasonable cost if anyone is interested.

I have also found that adding a 2 1/2 or 5 pound weight on top of my CD player makes a nice difference.