Killing Season uses newer version of AACS
Posted: Tue Aug 19, 2014 7:51 pm
Disc can't be read 
And, if that's the case, there would have been a link in the status window to send important information to Mike to allow the newer version to be added. Did you click on that link?
What level AACS was reported? What version of MakeMKV are you using?
(this is where those debug logs talked about in my signature come in VERY handy....