If you have some videos or movies which shows errors like not supported, not playable, unsupported, failed to play, you can try this professional video converter software
The video converter software is easy to use. Just few mouse clicks and you can convert videos to format supported by your device, video player, portable media player. You can convert videos from one format to another, such as mp4, mov, wmv, avi, mkv, asf, flv, rmvb, mpeg, avchd, 3gp, etc. You can convert videos from digital camcorder, mobile phones, cameras, GoPro, tablets, iPhone, iPad, Android phones like Samsung Galaxy, LG, Lenovo, Huawei, Xiaomi, Oppo, Vivo, etc. You can fix video not supported problem for Android TVs, portalbe media player, Windows Media player, Mac video player, Smart TVs, etc. You can convert videos for uploading to popular social media network like Youtube, Facebook, Instagram, Twitter, LinkedIn, etc.
More information
How to recover videos from SD card
How to download videos from Youtube