It probably doesn't have anything to do with country. Probably just depends on who sends KDMs. Anyways, I'm from Croatia.Carsten wrote: Sun Mar 26, 2017 4:37 pm That is rather strange, for what reason would they send ZIP files to some locations, but zzz files to others? What country are you experiencing this in?
- Carsten
But this guy from Canada received KDMs as zzz files also...
http://www.film-tech.com/ubb/f16/t001816.html
Google search reveals that some people just like to change ZIP to ZZZ (or whatever) when attaching to avoid spam filters. Nothing strange in that, so I think we can just rename extension when receiving ZZZ files ant that's it

Also, sometimes I receive KDM in ZIP and after extracting I end up with .pem file. If I rename that to .xml I get folder with XML inside that I can attach to DCP in DOM (pem doesn't work). That's also good tip and unusual behaviour.