FILE DISTRIBUTION METHOD, DISTRIBUTION SERVER, FILE DISTRIBUTION SYSTEM, AND PROGRAM

PROBLEM TO BE SOLVED: To provide a file distribution method capable of quick and efficient distribution of a plurality of files to many terminals, a file distribution system, a distribution server, and a program.SOLUTION: In a file distribution method according to the invention, a file distribution server divides a plurality of files into a plurality of blocks respectively (step S105), sets identification information of each file as a first address (step S103), sets identification information of each file block as a second address (step S105), creates a block address showing the order of each block from the first address and the second address to assign the block address to each block (step S107), and distributes each block on a network sequentially by multicast distribution (step S109).