At a studio in the Japanese capital, director Taro Kambe peers into a black headset to check a scene from his first video to make use of virtual reality technology. "I have directed hundreds of adult videos but it was my first virtual reality movie," said the 39-year-old. Japan is the worldÕs second biggest virtual reality market after the United States and the adult entertainment industry and gaming sector are turning to VR as a new way to distribute content. Some analysts have said the adult entertainment industry has helped to drive adoption of new platforms, such as Super 8 film in the 1960s, and later VHS, DVD and early online videos. REUTERS SEARCH "FILM VR" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: JAPAN-TECH/VR