Civilization 4: Beyond the Sword disc 1

Hey everyone, an odd request here. I’m looking for disc 1 to the Civilization 4 Beyond the Sword Explansion Pack. Mine was stolen, and I have disc 2 still, but it is worthless without disc 1. Anyone happen to have it or know someone who does or where I can get it. I am willing to pay for it or would take a copy too.

Thank you.