This is the industry standard for converting Blu-ray and DVD discs into MKV files without losing quality.

Enable "Expert Mode" in View > Preferences > General to see more details about audio codecs and file sizes. 3. How to Edit or Inspect the File

If the filename was generated by a ripping tool and you need to know how to use it:

MKV is a "container" format that can hold multiple video, audio, and subtitle tracks. Not all default players support it well.

If you aren't using VLC, you may need the K-Lite Codec Pack to provide your system with the necessary decoders.

The most reliable "all-in-one" choice. It includes its own codecs and can handle almost any MKV file.

Large MKV files can sometimes be incomplete due to interrupted downloads or bad disc sectors. If MKVToolNix throws an error when opening the file, the data itself may be damaged.

If you need to change subtitles, remove audio tracks, or fix metadata: