This is the industry standard for converting Blu-ray and DVD discs into MKV files without losing quality.
If the filename was generated by a ripping tool and you need to know how to use it: This is the industry standard for converting Blu-ray
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. the data itself may be damaged.