Karate has become a competition sport, and has spread worldwide, though its roots are still alive, and this DVD is an excellent example of this. Shihan Toshihiro Oshiro, native of Okinawa, is a recognized authority on the history and techniques of traditional Okinawan martial arts. He is president of the Ryukyu Bujutsu Kenkyu Doyukai (RBKD), which dedicates its work to the research and development of Okinawan Karate and Kobujutsu technique, and in particular the teaching of Shima-Ha Shorin-Ryu Karate and Yamanni-Ryu Kobujutsu. The style bases its work on understanding body biomechanics and internal dynamic physical system through the old kata, defending the traditional way of practicing Karate as a unitary system, as opposed to actual sport Karate. With the help of Sergio Hernandez Beltran and Cristobal Gea Gea, President and Technical Director and Secretary of the RBKD-Spain respectively, Oshiro Shihan presents the Shima Ha Shorin-Ryu basic kata: Sonoba Kihon (basic techniques in the same place), Ido Kihon (Basic techniques in motion), Kihon Kata 1-3, Pinan Kata or Basic Forms 1-5, Naihanchi Shodan, and the first two basic Sai forms (Shimabukuro No Sai).