Here`s how you can add (or remove) video, audio, and more from a .MKV file
(iMore iPhone)

Reunite TV shows with their missing audio commentaries - and much more - with these step-by-step instructions. Matroska is an open-source media format that takes its name from Russian nesting dolls. A single MKV container file can hold multiple video and audio tracks, subtitles, and more, making the format ideal for digitally backing up DVDs and Blu-rays. It`s fairly easy to play MKVs with free software such as VLC and Plex. But adding to or changing a Matroska file`s contents requires a little extra work. Follow our simple guide, and with one free program and a few minutes` time, you`ll have full control over what your Matroska files do and don`t contain. Why would you change an MKV file`s contents? If you want to rip your Blu-ray collection for backups or your personal media server, or just share videos you`ve made with the world, MKVs can easily bundle the high-def video, high-quality audio, and multiple subtitles from those discs in a single, manageable file. But some Blu-...