Storage medium for storing program capable of improving degree of freedom and effect of content provided by sponsor and information processing device

A CPU accesses a content corresponding to a motion picture ID included in designated motion picture information, among contents uploaded to a distribution server. Then, when distribution of the content from the distribution server is started, the CPU carries out streaming-play of the received content. Thereafter, the CPU determines whether a sponsor is brought into correspondence with the reproduced content or not. When the sponsor is brought into correspondence with the reproduced content, the CPU downloads a sponsor content list from the distribution server.