convert ts to mkv

Imagine that you download a video from some platforms. When you try to watch it on your phone, tablet, or other handy devices, a message pops up and say that this video cannot be opened. Then you find the video is in TS format, which is an old video format. To play it on your phone, especially iPhone, you need to convert TS to MKV. Here are two effective ways to help you resolve this problem.