Compression Format:Wavelet, MPEG-4, GeoMPEG-4 Security DVR Card security dvr card GV DVR CardModel :GV-650 V3Software 7.05 VersionVideo Input(s):4, 8, 12, 16 CamsAudio Input(s):2 channelsRecording Rate:60 fps (NTSC), 50 fps (PAL).Display Rate:60 fps (NTSC), 50 fps (PAL).Video Resolution:320x240, 640x240, 640x480, 640x480swCompression Format:Wavelet, MPEG-4, GeoMPEG-4