俺もよくわかんなくて気になったからぐぐってみたら
どっちも1080pには変わりなくてSUPER HDは高ビットレートのやつにつくらしい
このスレで説明してくれてる人がいる
https://m.reddit.com/r/netflix/comments/2kcus7/ps3_netflix_no_more_super_hd_us/


Steapenhyll• 708d, 6h
Why would the bitrate matter if the resolution of the video is the same?

-3
FormerSlacker • 707d, 20h
Resolution only tells you the frame size, bitrate tells you how much detail is packed into that frame.

The higher the bitrate, the more detail and better quality in each frame.

Something like Blu-Ray has a bitrate of 40Mbit which is why it looks amazing compared to Netflix. Even though both are 1080p, one is very much better quality than the other because of the higher bitrate.

Of course this is alleviated by Netflix with better compressing codecs and such but you get the idea.