Unless you watch movies online. I remember switching away from my Comcast/Xfinity DNS and immediately experience significant degradation of Netflix/Amazon video quality. Apparently they use DNS for traffic optimization when video streaming from popular video sites.
I really hope that we'll move past DNS load balancing for large media files at some point.
It's definitely better than nothing for small/one-off fetches, but VOD streaming sites usually have to fetch a license file from some API server anyway – so why not direct the viewer/client to the best CDN host based on the client IP address instead?
This used to be a problem but I haven't experienced it in a few years. I think the streaming providers must be using anycast instead of DNS techniques now?
