Comment by duskwuff

MPEG-TS files are just a pain to play in general. It was never intended as a file format for prerecorded video, and lacks some features (like seek indexes) which are required for reasonable playback.

In most circumstances, a MPEG-TS file can be remuxed (without reencoding) to a more reasonable container format like MP4, and it'll play better that way. In some cases, it'll even be a smaller file.