If you encounter any video unsupported error, or video not playable problem, it is because that videos is not in supported format. You can use video converter software to convert the video to fix video unsupported issue. Here's a good one
Video format converter
The video format converter software is easy to use. You can convert videos between various formats, such as mp4, mov, wmv, asf, mkv, etc. You can convert videos for your iPhone, iPad, Android, Samsung Galaxy, LG, HTC, Huawei, Sony Xperia, Moto, Oppo, etc.
The video converter software works on Windows 10, Windows 8, Windows 7, Windows Vista, Windows XP.
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