1)4 ch D1 4HDD H.264 CCTV DVR 2)Built-in 5.6 inch screen 3)4 ... rectangular zones (each camera)OSDATM/POS information, camera title, time, video loss, camera lock, motion detection, recordingRecordingVideo/Audio CompressionH.264 / G.711ResolutionD1/ ... Fast play, Slow play, Next file, Previous file, Next camera, Previous camera, Full screen, Repeat, Shuffle, Backup selection, Digital zoomBackup ModeUSB ...