Western Digital BLOCK Media Files from being shared

I agree that the solution is rather extreme, but, I think the key note here is;

Western Digital has blocked users from sharing more than 30 different file types, if they are using the company's software, called Anywhere Access.

As far as I can tell, you have to manually install this. It isn't pre-installed on hard drives, and was mainly designed for their worldbook thing, which, while nice, is something you can easily do with a home computer. I can't see this thing becoming all that popular except perhaps in business, for which it appears to be designed for, not your average consumer.