Not sure if this is what you are looking for but a a couple suggestions.
When we are looking for hard to find CDs, we look to VStore -
http://raremusicfinder.vstorecds.com and another site called Anytitle.com
- http://www.anytitle.com/ . A site GEMM is in the anytitle listings and
has been a great locator of rare titles. A U.K. site that sometimes gets
buried in the GEMM listings is another favorite of mine is CDZone -
You can find a number of TV and soundtrack scores at Buysoundtrax -
http://www.buysoundtrax.com/ and a smaller U.K. site called Screenthemes -
Most of these have new listings but some are used. My side hobby is
looking for those used, rare releases so if you can't find a particular
title, email me and I might be able to provide some assistance.
Videolib mailing list