Hi, I agree on the fact that one must read this compatibilities lists; BUT I downloaded Metal Pack for my X3 Live (not in this list) and it WORKS perfetly!!! Now I just bought the HD500x and I can't see it in the License Manager, but it clearly states somewhere here that if you cannot see it, it's because it's no compatible. So no, Metal Pack is not compatible with HD500x. I downloaded HD Metal pack and it's just OK, I mean not as good as normal Metal Pack... I hope it gets improved soon.