Do home theater test discs exist?


As an audiophile, I have my share of stereo test discs with the usual well-recorded songs, tones, phase checks, etc. Where can I get similiar discs for home theater?
ivory1
There are two disks, one is by Avia,the other escapes me at the moment.
This is probably the best of them:

http://www.videoessentials.com/ve_d_order.htm

though the Avia is good, and the Sound & Vision is not bad, either.
That's it, video essentials by Joe Kane
* Avia
* Ovation from Sound & Vision (essentially the same product as Avia for substantially less)
* Video Essential