Handbrake, the free and open source video converter is capable of converting videos from modern file formats.
Handbrake recently releases version 1.0.0 after 13 years of development. This major milestone version lands with huge list of improvements. You can read the entire release notes here.
Download
Handbrake 1.0.0 is available in PPA for Ubuntu, Linux Mint and other Ubuntu derivatives. Install it using below commands:
sudo add-apt-repository ppa:stebbins/handbrake-releases sudo apt update sudo apt install handbrake
For Windows, Mac installers visit this page.
You can report any issues you encounter while installing, using handbrake here.