1. A recording apparatus comprising: a face recognition unit which recognizes a face of a person in a decompressed input image frame; a recording position setting unit which sets one of an image frame in which the person appears and a scene change start frame comprising the image frame as a valid recording point if the recognized face is detected for a predetermined period of time or detected a predetermined number of times, and identifies a position, which corresponds to the set one of the image frame and the scene change start frame, in an image compression stream; and a recording unit which records the image compression stream from the identified position, and stores the recorded image compression stream in real time.