... audio compression;n Highest recording resolution D1;n Timing/alarm/motion detection recording modes for choice;n Easy backup by using ... rewind/fast forward/frame;n With alarm input & output;n Motion detection/video loss/video shield alarm modes for choice;n ... , UPNP,DNS, IP filter, PPPOE, DDNS, FTP, Email, AlarmAlarmVideo Loss, Motion Detect, Disk No Space, Disk Error, Video Cover, Local Alarm, Exterior ...