looking for best isolation platform for CD player

Sean: Agree with you on the Justaracks; I got some a few years back because I liked the ability to change the shelf spacing, which I needed for my setup, but wound up using all sorts of other vibration isolation devices, including decoupling the racks from the floor on a constrained layer damped platform and racketball feet and using isolation damping bases (KWorks IsobaseKs, innertubes with silicon in them in a sand and lead filled base) under all equipment on the rack in order to undo the adverse effects on sound that came from those racks. I never heard as pronounced a difference in sound as you did, but (particularly with all my tubed equipment) there definitely was an audible difference; I think that the theory behind that rack of taking all vibrations from the equipment and channeling them down the threaded rods into the floor through spikes just did not work in my setup; in fact, I think those spikes just rechanneled all the floor vibrations back to the equipment.