PROsee PD-D08SE, User Manual, Page: 61 / 64

DVR User Manual
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Appendix B Calculate Recording Capacity
Users can calculate the size of hard disk according to the saving time and DVR recording
settings. The DVR uses fixed video bit rate. The below are the details at different settings.
Resolu
tion
Frame Rate
Totally(FPS)
Video
Quality
Bit Rate
(kbps)
Used Space
(MB/h)
D1
30(NTSC)/
25(PAL)
Highest 2M 900
Higher 1.5M 675
Medium 1M 450
Low 768K 338
Lower 512K 225
Lowest 256K 112
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 NTSC cameras, set resolution to WD1, video quality to
Lowest, frame rate to 30 fps for enabling total 8 channels. He wants the unit to record
continuously in a month. Below is the calculation:
Total Recoding capacity =112 (mb/h) × 24(hours/day) ×30(days) × 8(channels)=
645120 (MB) =630(GB)
Therefore, customers just install one SATA HDD with 1TB, it can almost record for one
month.
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