... audio can be choosen MPEG-4 dvr card system need: windows2000/XP/2003 GV-650 DVR card Specification Input Type D-Type ... optionalRecording Rate 60 fps (NTSC), 50 fps (PAL). Display Rate60 fps (NTSC), 50 fps (PAL). Video Resolution NTSC: 720x480, 720x480 de-interlace, 720 x 240 ... , 640 x 240, 320 x 240 PAL: 720 x 576, 720 x 576 de-interlace, 720 x 288, 640 x 480, 640 x ...