The online video playing within a web browser cannot always be detected and downloaded to local drive with help of common downloaders (especially the video that is divided into multiple pieces). At this point, recording it using the traditional desktop/screen capture tools is our only choice. However, at least two deadly weaknesses exist when using them to record streaming videos:

1. The graphics quality is too low, and the frame loss phenomenon is very serious
2. During the video recording process, you can do nothing else but make sure the recording area keeps focused and not obscured, otherwise the unexpected things will be recorded