How to add another database?

[vidmarc]

I'd like to be able to add a function whereby I can list DVD releases in a separate database which members can then flag as having in their own collections. Is there a "collection" add-on feature mod available to do this?

It's been done here as a custom mod for 3.8.5:

http://www.pre-cert.co.uk/

[Videx]

I am unaware of such a mod. You might have to pay someone to code it and maintain it.