User blog comment:IamJakuhoRaikoben/Sorcerer Magazine, Issue 27: March 2014/@comment-3424593-20140405003129/@comment-2214433-20140405011158

Blu-ray discs. And you'd be surprised, I remember reading a legit article of manga authors who literally refused to have their works published outside of Japan. I guess it's not always just about money :/