COP-USA DVR2708XD-M - Manual (Page 100)

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
Totally(FPS)
Video Quality Bit Rate (kbps) Used Space(MB/h)
1080P
12(PAL)/
15(NTSC)
Highest 12M 2700
Higher 10M 2250
Medium 8M 1800
Low 6M 1350
Lower 2M 450
Lowest 1.5M 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 1080P, video quality to Lowest, frame rate to 12 fps for enabling total 8
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) X8(channels)= 1946880 (MB)≈1901(GB)
Therefore, customers need to install two SATA HDDs with 1000GB for one month record.