I'm just getting back into the game after having essentially quit in the middle of 2012, so I'm doing quite a bit of catching up on the changes.

I have a question about item levels and melding. As I understand it, tier IV materia is for iLevels of 75 and above. However, I've noticed a few Darksteel Haubergeons (iLevel 70) with tier IV materia attached.

Can someone tell me how the melders managed to do that? I'm probably missing something obvious. But as I said, I'm doing a lot of catching up on the ARR changes.