MakeMKV was developed to be your one-click solution to convert video that you own into free and patents-unencumbered format that can be played everywhere. MakeMKV is a format converter, otherwise called "transcoder".
 
It converts the video clips from proprietary (and usually encrypted) disc into a set of MKV files, preserving most information but not changing it in any way. The MKV format can store multiple video/audio tracks with all meta-information and preserve chapters. There are many players that can play MKV files nearly on all platforms, and there are tools to convert MKV files to many formats, including DVD and Blu-ray discs.

Additionally MakeMKV can instantly stream decrypted video without intermediate conversion to wide range of players, so you may watch Blu-ray and DVD discs with your favorite player on your favorite OS or on your favorite device.
MKV stands for "Matroska Video". Matroska is a container file format, capable of holding unlimited number of video, audio and subtitile tracks, along with any metadata. Practically this means that it is possible to put entire movie with multiple sound and subtitle tracks, chapters information and movie thumbnail into single file. Being open and patent-free Matroska gained broad support recently and quickly becomes de-facto standard for storing movies.  

Limitations:
· 30 days trial period
· You may use MakeMKV to convert or stream DVD and AVCHD discs for free, as much as you want. Converting or streaming Blu-ray discs is trial functionality.

What's New in This Release:
· Added support for AACS v35
· Updated BD+ engine
· Added ability to produce MKV files with compressed tracks (WDTV profile)
· Improved handling for DVD/Blu-ray discs with mastering errors
Bug fixes:
· Audio transcoding could fail or hang at the very end of file
· MakeMKV could crash when reading DVDs with a specific structure protection
· Many miscellaneous stability improvements