In digital broadcasting, a stream signal includes a data stream in data broadcasting, and a video data stream and an audio data stream in main broadcasting, which streams are combined. A recording/reproducing apparatus includes: a storage unit; a read/write section configured to access the storage unit; a separating section configured to separate the data stream from the stream signal in a real-time mode and a record mode, and to output a combined data stream of the video data stream and the audio data stream in the read/ write section in the record mode; and, a processing section configured to receive the data stream from the separating section in the real-time mode and the record mode, and to output data corresponding to the data stream to the read/write section in the record mode. The read/write section records the combined data stream in the storage unit, and records the data in the storage unit independently from the combined data stream.