Arm Electronics VR16D15T 16 Channel DVR with 1.5TB hard drive, H.264 The New VR Series is the latest ARM line of DVR's offering H.264 recording technology. H.264 compression technology is less demanding on bandwidth than MPEG-4 DVR's and provides smooth network video transmission. The 2/3 chassis design is small on size but big on features. A new graphical user interface is simple and easy to use and optimizes set-up of the unit. Other features include a built in VGA output, motion D328detection, PTZ control and built-in audio recording. You can even view live video, search and playback recorded video and remotely monitor the unit via internet on your PC while simultaneously recording at the DVR.