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Time Table DVR Storage Capacity Calculation ( Based on 80GB HDD ) Calculation Resolution Image Size (KB) Fps Second Minute 352x240 (CIF) 3.5 ( Highest ) 30 60 60 24 4 352x240 (CIF) 2.6 ( High ) 30 60 60 24 4 352x240 (CIF) 1.6 ( Standard ) 30 60 60 24 4 352x240 (CIF) 1.1 ( Low ) 30 60 60 24 4 704x240 (2CIF) 8.5 ( Highest ) 15 60 60 24 4 704x240 (2CIF) 6.8 ( High ) 15 60 60 24 4 704x240 (2CIF) 4.3 ( Standard ) 15 60 60 24 4 704x240 (2CIF) 2.7 ( Low ) 15 60 60 24 4 704x480 (D1) 37 ( Highest ) 7 60 60 24 4 704x480 (D1) 30 ( High ) 7 60 60 24 4 704x480 (D1) 19 ( Standard ) 7 60 60 24 4 704x480 (D1) 12.5 ( Low ) 7 60 60 24 4 704x480 (D1) 52 ( Highest ) 1 60 60 24 4 704x480 (D1) 37 ( High ) 1 60 60 24 4 704x480 (D1) 32 ( Standard ) 1 60 60 24 4 704x480 (D1) 27 ( Low ) 1 60 60 24 4 Result Required Storage Capacity ( GB ) Record Hours Per Day Number of Cameras Time to HDD Full ( About ) 36.2 80/36.2 = 2.2 Days 26.9 80/26.9 = 2.9 16.5 80/16.5 = 4.8 11.4 80/11.4 = 7 44 80/44 = 1.8 35.2 80/35.2 = 2.2 22.2 80/22.2 = 3.6 13.9 80/13.9 = 5.7 89.5 80/89.5 = 0.8 72.5 80/72.5 = 1.1 45.9 80/45.9 = 1.7 39.2 80/30.2 = 2.6 17.9 80/17.9 = 4.4 12.7 80/12.7 = 6.2 11 80/11 = 7.2 9.3 80/9.3 = 8.6 50