EverFocus DVR EDR810M - Manual (Page 38)

4. SEQ (MAIN/CALL): Set the number of seconds a camera is displayed in sequence. The first
number is for sequence on the Main Monitor, the second number is for sequence on Call Monitor.
5. REC QUALITY: Select an image quality for recording. There are six different qualities available.
A higher image quality uses more HDD space. To change this, simply use the Jog Dial on the
DVR. The approximate space needed per second is listed below:
720x480 Video Source
Simple: Complex:
LOWER: 8.04KB 12.33KB
LOW: 8.42KB 13.7KB
BASIC: 10.15KB 16.72KB
STANDARD: 11.86KB 19.56KB
HIGH: 14.72KB 24.63KB
Average size
per image
SUPERIOR: 18.60KB 30.05KB
720x240 Video Source
Simple: Complex:
LOWER: 3.53KB 7.82KB
LOW: 3.87KB 8.36KB
BASIC: 4.21KB 8.9KB
STANDARD: 4.92KB 9.54KB
HIGH: 5.62KB 10.17KB
Average size
per image
SUPERIOR: 6.41KB 12.89KB
360x240 Video Source
Simple: Complex:
LOWER: 1.76KB 4.56KB
LOW: 1.87KB 4.87KB
BASIC: 1.97KB 5.46KB
STANDARD: 2.38KB 6.51KB
HIGH: 2.67KB 7.08KB
Average size
per image
SUPERIOR: 3.63KB 9.02KB
Note: “Simple” refers to very few changes occurring during recording; “Complex” means the
whole image is constantly changing. Since the compression ratio of MPEG4 fully depends on the
variation and complexity of the recorded video, the table above is for reference only.