This is a high-end, top of line DVR system. It displays up to 4 video channels with a crystal clear picture and recording in real time. The high quality MPEG4 compression codec provides up to 4 weeks of recording time with a 250GB Hard Disk Drive. The built-in video motion detection helps the DVR system from storing unnecessary video. By connecting the DVR to the Internet, you are able to view live or archived videos from a remote location.