There's nothing in Playford of that name, and the usual indexes don't seem to have it either. Your friend needs to give you full details of the cd, in case that provides a clue. I find no reference to it, so I'm assuming that it's a small-scale private release.

For one thing, we don't know whether Country Gentlemen is the name of the tune as well as the dance.

You might try a phone call to the Vaughan Williams Memorial Library. They have a very extensive dance index, but of course that may not help if it's a recent composition. The first step would be to contact whoever made that cd.