Day Calculator:

1. Select image format:
   NTSC PAL
    Wavelet: 640*480 640*240 320*240
    MPEG4: 640*480 640*240 320*240
    MPEG1: 1152K bits rate 512K bits rate
    Compression Rate: 100 90 80 70 60 50 % by Object Changing Rate: 90 30 10 %
    Record by : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 frame(s)/channel in 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Channel(s).

2. Select the Number of Hours per Day to Record:
    1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 hour(s)

3. Select what you want to calculate:

A. How long can you record with a selected storage option
     Select a Hard Disk Size: Select HDD 40 Gigabytes 60 Gigabytes 80 Gigabytes 120 Gigabytes 160 Gigabytes 200 Gigabytes 250 Gigabytes 300 Gigabytes 350 Gigabytes with HDD(s)
    
     Delivers an Estimated Days

B. Amount of storage required to record
     Enter number of days to record:
    
     Required Hard Drive Size: GigaBytes