What is the difference between Adobe Http dynamic streaming and HTTP MPEG-DASH adaptive streaming
As per my understanding both are http based..
What is so unique about HAS MPEG-DASH that makes it better than Adobe HDS?
They are competitors. Besides differences in the file container format, The largest difference is Adobe. DASH does not have a for profit company behind it. It is a standard developed by standards bodies. This tends to lead to better compatibility, better open source tools, and cheeper deployment.