On http://www.voxcd.com/; the main Vox site you'll find the description
below if you click on the 'site map' and look at 'Custom CDs'.
Custom CDs: Now available from Vox: deleted titles and LP titles never
issued on CD. A whole new way to obtain rare and sought- after performances.
These links lead into more details of available performances.
Once again, regards to all:
Tom Connor