know of a great audio test CD?

Are you looking specifically for a "test disc", or for a CD that has outstanding fidelity to demonstrate the capabilities of your system?

More the test disc. Though always like to hear of Cds with oustatnding fiedelity

Be very, very careful. Read the fine print! Some test CDs will push your speakers, especially on the high end to the point of rupture.

I speak from experience.

Thanks for the great tip. I assume that would be at high volume

Had the pleasure recently to meet fellow A'goner Woodsage. He brought over two manufacturer "Test" disks with some outstanding musical selections. Not to be confused with the same "test" CD's Joe seems to be asking about these just had some wonderful and diverse musical selections that were very well performed and recorded. Some were familiar to me, but most were not. I cannot site the tracks themselves, but once CD was put out by Burmeister, and the other by Usher.

As far as test CD's for test tones, system setup and demonstrations of various technical aspects of a system, the Stereophile CD's work pretty well too.

Marco