Sun Ao (1932-2002) was a pivotal figure in the Chinese film industry, renowned for his work as both an actor and a voice dubber. His performances in classic films such as "Ji Hong Chang" (1979) and "Ping yuan you ji dui" (1975) have earned him a special place in the hearts of collectors. "Ji Hong Chang," a dramatic tale that showcases his nuanced acting, is particularly sought after for its cultural significance and representation of the era, making it a gem in any collection. Collectors are drawn to Sun's extensive contributions to over 400 foreign and 200 domestic films, highlighting his versatility and influence in the industry. His ability to bring international characters to life through dubbing has made many of these films rare finds, adding to their allure. As a central figure in the evolution of Chinese cinema, Sun Ao's work not only enriches the history of film but also serves as a testament to the craftsmanship of physical media in preserving cinematic artistry.