Originally Posted by Vishwa Somayaji
SuperHD is relatively recent, not available through all ISPs yet...
...and even when available, the appliance doesn't always get the suerhd stream.
My ISP, Cox Communications, is now set up for access to streaming servers in Netflix's Open Connect CDN. If a player gets assigned to those servers, the Super HD video encodes will always be available, if any exist for the title being played. Whether or not you'll get them given the current conditions on your connection to those servers is uncertain, but that's true of the old 720p and 1080p encodes (all of the encodes, actually). The player will play the highest bit rate video encode that it can keep its buffer full of; if, for whatever reason, its buffer starts to quickly drain, it will switch to buffering a lower bit rate/lower picture quality video encode--that's adaptive bit rate streaming. You need about 1.2 times the encode bit rate in bandwidth available on your server connections to consistently keep ahead of the stream, so about 5200 Kbps for the 4300 Kbps Super HD encode and about 7000 Kbps for the 5800 Kbps one.
Now that my ISP is set up for Open Connect I always
get assigned to Open Connect streaming servers, regardless of the device that I'm using (my 1080p-capable Netflix playing devices are a Roku 2 XS, PS3, TiVo Premiere, Panasonic DMP-BDT220, Sony BDP-S390 and the Win8 Netflix app running on this PC). For about a week, before my ISP had access, I was using Unblock-US.com's DNS servers to get Super HD and was getting assigned Open Connect servers probably less than half the time and had to repeatedly stop and restart the player to get them.