The file finished, but the "footer" containing the index metadata was lost.
– Re-index without re-encoding: ffmpeg -i broken.mkv -c copy fixed.mkv mkv index free
: A free, comprehensive tool that includes "Rewrap" functions to fix container errors without changing quality. Are you looking to a specific corrupted MKV file or trying to configure a stream for index-free playback? HandBrake: Open Source Video Transcoder The file finished, but the "footer" containing the
-c copy : Tells FFmpeg to copy the video, audio, and subtitle streams directly without re-encoding them. This prevents quality loss and finishes the job in seconds. HandBrake: Open Source Video Transcoder -c copy :
The process demands very little processing power, making it viable on older or low-spec computers.
mkvmerge -o repaired.mkv video.h264 audio.ac3 subs.srt
A: This is a classic symptom of a missing or corrupted index (cue sheet). Media players need a map of the file to jump to a specific time. If that map isn't there, seeking becomes impossible. Re-muxing the file with MKVToolNix is the best solution.