Why is it true that the existing video cannot be displayed when opening Transcoding Master? After downloading the video, import and open the folder. There is obviously a video in the folder.

Querran Transcoding Master, the default when opening a file is "Common Media Types". You can select the video file type you want to import or select all files in the file type option.

There is also a simple method: directly drag and drop the video file into the SureWan Transcoding Master window.