Hardware dvr card cy-4016 H.264 (mpeg-4/part 10) video compression standard leads to high compression ratio and good video quality Oggvorbis audio compression standard, with 16 khz sampling rate and 16 kbps output bitrate Real-time video and audio compression, no frame lost 4cif preview resolution Comply with pci 2.2 standard, support pci-x slot, one pc can support up to 64 channels Support windows2000/xp/server 2003 and linux operation system Less than 1 second delay in lan. Setable i.B.P frame sequence Setable video quality and bit rate Setable brightness, contrast, saturation and hue of video signal Support motion detection Support double encoding