Test CD for positioning speakers and subwoofer


Can anyone recommend a good test CD to help position stereo speakers and a subwoofer? Whenever I fix one problem (weak center image, poor integration of the sub, uneven bass), another problem pops up.
tantra
A Sterephile test CD and a Radio Shack meter for the bass works well, a Cardas Disc for set up (includes a "walk about" which I find helpful), and I use an Opus 3's "Depth of Image" to fine tune, as well as other ordinary disc's with which I'm very familiar and which have borderline problems if the room set up and the electronics are not ideal. In the end though you're still likely to have some compromise somewhere. The bass can be a bitch to get smoothed out as there usually are some room problems you can't correct.
XLO Test CD, track no. 3, is the best for setting up speakers, accurate to within 1/8 inch. No substitute.
I use the Rives audio test CD
http://www.amusicdirect.com/products/detail.asp?sku=ARIVESCD2

Great test cd, calibrated to use with the Radio Shack SPL meter.