Usually:
The segmentation resolution of 1080 * 720 is about 5000K K.
The resolution of 720 * 576 is about 3500K;
The resolution of 640 * 480 is about 1500K.
Extended data:
I. Calculation formula
The basic algorithm is: bit rate (kbps) = file size (KB)* 8/ time (seconds). For example, D5 disc has a capacity of 4.3g. Considering the different audio formats, it is 600M (so the remaining capacity is 4.3 * 1024-600 = 3803.2m), so the video file should be.
If the video file size is 3.446 g and the video length is 100 minutes (6000 seconds), the calculation result is that the code rate is approximately equal to 4818kbps (3.446 *1024 *1024 * 8/6000 = 4000).
Second, some principles of code rate
1, the bit rate is proportional to the quality, but the file size is also proportional to the bit rate.
2. When the code rate exceeds a certain value, it has little influence on the image quality.
3. The capacity of 3.DVD is limited, whether it is standard 4.3G, over-engraved or D9, there is a limit. The information in the computer is represented by binary 0 and 1, where each 0 or 1 is called a bit and is represented by lowercase b, that is, bit.