Click "Start." This forces VLC to read the stream and write a new index for the output file. Technical Tip: Using Command Line (FFmpeg)
MKVToolNix is the most powerful, open-source suite for handling Matroska files. It doesn't just "fix" files; it re-muxes them, creating a brand-new, healthy index in the process. Download and open MKVToolNix GUI . Drag your broken MKV file into the "Source files" window. Click "Start multiplexing" at the bottom. mkv index free
Where to Find Free MKV Index Files (And How to Use Them) Click "Start
