To reduce meaningless charging on a broadcast enterprise and pressing of a transmission band of a digital broadcast source material relay network as a wired communication network by transmission of carousel-processed data imposed on a communication enterprise.

The broadcast source material transmission system for terrestrial digital broadcasting realized through simultaneous distribution to many places (points) in all over the country via a wired communication network provided by a communication enterprise eliminates redundancy information existing in the data carousel transmission system adopted by the data broadcast service in the terrestrial digital broadcasting and gives the resulting data to a digital broadcast source material relay network as the wired communication network to allow the relay network to simultaneously distribute the data and each receiver side restores the original data carousel.