That's a valid reason; sadly I don't have it. My family was the first that I knew of (personally) to get cable internet, we had it in some capacity since 1999, so our internet was fast and unlimited. We should have done a Google search.

Still, I don't feel like we came to the conclusion of CDs being archive-grade on our own, someone probably told us that a "CD will last forever" and we just never questioned it.