Result: Your MKV files now "work" on any device, anywhere.
ffmpeg -i input.mkv -c copy -movflags +frag_keyframe+empty_moov output.mp4 myservercom filemkv work
MKV (Matroska) is a container , not a codec. A server can host an MKV file perfectly, but the client (browser, TV, phone) may not understand the video (H.265/HEVC) or audio (DTS, TrueHD) streams inside that container. This is why the file doesn't "work." Result: Your MKV files now "work" on any device, anywhere
Before making MKV files work on a server, one must understand why they often don't work out of the box. This is why the file doesn't "work
For 95% of users searching for this term, this is the actual answer. You need to install a media server application between your raw file storage and your client. The most popular options are , Jellyfin (open source), and Emby .