A broadcast signal processing apparatus that is capable of recording and reproducing an externally received broadcast signal with respect to a hard disc drive, and which includes a broadcast signal receiving part for receiving a broadcast signal, demodulating and dividing the received broadcast signal into a video and audio signal, a hard disc drive formatted in a file allocation table (FAT) form, and wherein the HDD has a FAT and a data region, and a control part for recording, searching and reproducing the audio and video signals with respect to the HDD based on the FAT file system. When the FAT is updated, the apparatus is further capable of adding a temporary file termination data to an end of the updated data, and converting, corresponding to a recording stop signal, the temporary file termination data into a normal file termination data according to the FAT file system.