... HDD ,multi-language supported 4.Professional DVR Manufactur Features:1. Stand-alone DVR, H.264 compression.2. High quality video display: NTSC ... , playback, backup, and network at the same time.7. Backup: CD-RW, (option: DVR-RW), USB 2.0 and network backup ... for the mouse, remote control, PTZ, camera control Backup ModeSupport CD-RW, DVD-RW, USB, Network Backup Compression StandardH.264 Hard ...