It has always annoyed me that "region settings" don't just take into account the realities of the situation; they're OBVIOUSLY designed to prevent people in "rich" countries from buying media designated for "poor" countries in a form of market segmentation; but that should mean the "rich media" should just work in all devices. Of course now things like the players are so cheap you can just buy multiple if you want to…
You are giving advice on how to circumvent region coding technology, which is probably illegal due to DMCA or some other act
"No person shall manufacture, import, offer to the public, provide, or otherwise traffic in any technology, product, service, device, component, or part"
Mere advise is almost certainly safe.