An HD radio receiver includes a storage unit for carrying out tuning at a time when autostore is activated and for storing broadcasting station data about a terrestrial digital radio broadcast received by the tuning, a reception quality detecting unit for detecting reception quality of the radio broadcast received, and a control unit for deciding the number of broadcast programs of multicasting that broadcasts a plurality of programs on a single frequency from the terrestrial digital radio broadcast received and for registering in the storage unit broadcasting station data with a greater number of decided broadcast programs in preference to broadcasting station data with better reception quality detected by the reception quality detecting unit.