COP-USA DVR16HEC-960 - Manual (Page 103)

DVR User Manual
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Appendix B Calculate Recording Capacity
Users can calculate the required size of hard disk according to the total recording duration and DVR recording settings. The
DVR uses fixed video bit rate. The below are the details at different settings for CBR.
Resolution
Frame
Rate (FPS)
Video
Quality
Bitrate (kbps) Used Space
（MB/H）
WD1
30(NTSC)/
25(PAL)
Highest 2.5M 1125
Higher 2M 900
Medium 1.75M 788
Low 1.5M 675
Lower 1M 450
Lowest 768 338
The calculation format is: Total Recording capacity =Used space per hour (MB/h) (coverage rate of hard disk) ×
recording time (hour) ×channel numbers
For instance, one customer uses PAL cameras, set resolution to WD1, video quality to Lowest, frame rate to 25 fps for enabling
total 4 channels. He wants the unit to record continuously in a month. Below is the calculation:
Total Recoding capacity =338 (mb/h) X 24(hours/day) X30(days) X4(channels)= 973440 (MB) ≈950 (GB)
Therefore, customers just install one SATA HDDs with 1TB, it can almost record for one month.