Picked up one of these and find that it works as described by Srajan in the 6moons review (http://www.6moons.com/audioreviews/isotek/cd.html). I feel for me that this disc is going to be a nice time saver with new gear, as well as a time-saving system tune-up tool for what I already have in my system. Highly recommended. I note I'm not going to try to write another review, as I feel Srajan Ebaen nailed it in his review.
FYI - purchased mine from Mr. Gary Leonard Koh of Genesis Loudspeakers (email = gary@genesisloudspeakers.com (gary@genesisloudspeakers.com)),who was affable on the phone and great in all regards.
:beer:
I bought one from Genesis too. I think it was $35 or so delivered. I can't say for sure if it works but I've been using it!