The present invention relates to a recording and storage means in digital STB (Set Top Box) and PVR (Personal Video Recorder) and method thereof. The digital broadcast receiver for receiving real-time digital broadcast programs comprises: storage means for storing broadcast programs, being attachable and separable to and from a set by a user without taking the set apart; a coupling means for attachment and separation of the storage means to and from a main body of the broadcast receiver; and a connection means as a path for power supply of the storage means, and signal. The method for storing real-time digital broadcast programs comprises the steps of: extracting a broadcast program to be stored from a digital broadcast stream being received by a tuner; detecting whether a storage means is installed in a broadcast receiver; if the storage means is installed, storing the broadcast program in the storage means, if the storage means is not yet installed, storing the broadcast program in a temporary memory, and redetecting the installation of the storage means and if the installation of the storage means is confirmed, storing the broadcast program stored in the temporary memory in the storage means. The present invention allows users to record and store real-time data for an extended period of time, simply by changing the storage medium with a new one without interruption of the data being received.