... w/ H.264 Main Profile Video Compression, enhances 2.2 times of image quality and reduces 40% HDD ... GUI DisplayH.264 Main Profile Video Compression, enhances 2.2 times of image quality and reduces 40% HDD ... HDD, Strong Storage Capacity for 4 Months Recording Digital Watermark for Video Data Protection Friendly Design for ... )SPEEDNormal,Slow&FF(1/4,1/3,1/2,1,2*,3*,4*)SEARCH METHODTime, Event, Channels and ...