[pbhjpbhj]

Is that true, since USA signed up to the Berne Convention (18XX) copyright in USA has been an unregistered right (as was already common across the World).

If DMCA only applies to registered works that's interesting to me -- seems it is, eg https://www.lexology.com/library/detail.aspx?g=7f07e1c0-5264..., in fact it appears as in other areas of USA law you have to buy your right (from the government in form of a registration in this case) which seems contrary to Berne, I'm suprised it doesn't put USA in breech of their duties as it effectively reverses the "automatic" aspect of copyright for ordinary citizens.