Video compression MPEG-4 Playback research Multiple Search Categories (Date/Time, Motion, Alarm, Manual) Pentaplex Simultaneously Live, Record, Playback, back-up and Network User-friendly GUI Menu, Mouse Operation PTZ camera control support in local and remote area Network Function - Static IP as well as Dynamic IP (DHCP, Floating IP) and DDNS support - Live or Recorded Video Accessing via Ethernet - Remote Configuration. - Multi-user accessing support/ CMS (Center Monitoring Software) support - Two way audio transmission, Remote Event (Alarm, Motion) Notification Others: OS: Embedded Linux Multi Task: Record, playback and transfer, Control Device:Front keys IR type remote controller/Network viewer/Matrix PC Viewer: Direct viewing of DVR's HDD on PC This Embedded Linux Stand-Alone DVR can record 4/8/16 channel video and 4/8/16 audio at the same time. It provides playback, live same time. It provides display, back-up and network function while it is in recording mode.