I had the same question, and it isn't about breaking DRM. The Samsung Media Hub web site says, " Media Hub is a real cloud service, you can have the purchases you have made on up to to five devices at a time;" Media Hub: A Universe of Entertainment at Your Fingertips | Samsung Articles & Insights
After reviewing it I think they mean a Samsung tablet or phone when they say device.
I don't think the original post was so much about defeating DRM. The Samsung site wasn't very clear, IMO. Often times there is a way to do something that IS STILL LEGAL, but the manufacturer doesn't make it widely know.