I have all three Stereophile CD's and I love them. They are great for setup and have some excellent recordings. The test tones are pretty much the same with some variations on all three but the music recordings are all different. My favorite is disc #3. It has a couple great jazz recordings and a killer sounding Chopin piano recording. Also disc three has a recording of a Fofmula 1 qualifying day at Montreal. The soundstage is spectacular, something I had never heard before on a stereo recording. I wish they would make a 5.1 test disc because they know their stuff.

Daniel