After the birth of 3D glasses, the source of 3D video became a vital problem. Therefore, we could find software everywhere that can help convert the common 2D video into 3D format (although the conversion results were somewhat disappointing). Similarly, the appearance of VR devices is also facing the same problem. That means we need to use specific tools to solve the problem of VR-3D video source. Now, among all VR-3D video converters, I think iFun Video Converter is an outstanding one, which leaves all competitors behind (one of the losers is: Wondershare's Video Converter Ultimate).