As I've already said, I don't think you should be keeping the same data in more than one table, but rather use a query to retrieve the relevant data.
Take a look at "qryPickMedia" in the attached. You could use a similar query as the Record Source of a form and use a combo on that form to...
Not sure that it would be a good idea to have the media data in both tables.
I'd have thought that you could use a query to tell you in which media you have a particular song.
Can you post a copy of the db for us to play with.