What should I do when I know whether or not a copyright-holder allows download permissions?

If you have been able to contact with someone who is a copyright-holder of a title on this site (or indeed, if you are the copyright-holder), please click the "Add Copyright Page" from the link on the right, adding as much detail as possible, and selecting "Granted" or "Declined" in the status field.

Then, product pages can link to that page by typing part of its title in the "Copyright Provenance" field.

This will help me work more quickly enabling disk images to be downloaded, with less risk of accidentally approving a denied file.