Patrick Frater Asia Bureau ChiefRakuten Viki, a streaming platform specializing in Asian content and fan-generated sub-titles, is launching a transactional VOD function in North America. The new functionality kicks off with two recent Korean movies, “Josee” and “New Year Blues.”Backed by Japanese e-commerce and entertainment group Rakuten, Viki currently operates an ad-supported video service (AVOD) and two tiers of subscription video (SVOD).