The adding steps are very simple, just some clicks, you can add the video files to convert quickly.
1. Download, install and lanuch the software, you can see the interface:

2. Click "Add" button, you will see the videos available in the popup dialog:

3. Select the videos you want to convert and click the "OK" button. Then all videos you selected will show in the File list as follows:

The software can only convert the videos playable on iTunes, If your video files don't exist in iTunes, this error prompt window comes out as follow:

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