I don't see them on your mirror for 4 and 5, CentOS 6 automatically
"has" the DVD (and that is not mentioned on our mirror page).

Ah, you're correct! I simply looked at CentOS 6 and saw the .iso; assumed the others were there as well.

How do we mirror the other DVD isos as well? We have the space and bandwidth and would be pleased to contribute.

-Brian