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MKVtoolnix 5.9

Free Create and analyze Matroska files
4.2 
Latest version:
83.0 See all
Developer:

Set of tools for creating, altering and inspecting the Matroska file format. Split , merge, extract and get information about MKV video files. It also supports video codecs and subtitle formats.

Matroska (MKV) files have become the de facto standard for compact HD video files. To create MKV files from various sources or to modify the structure of existing Matroska files, MKVtoolnix offers an open-source solution to inspect, modify, or produce new MKV files with the audio, video, and subtitle streams of your choice.

Actually, MKVtoolnix is not one tool but a toolbox that integrates various Matroska-related open-source utilities. Mkvinfo provides you with a list of all the elements contained in a Matroska file, its tracks, and even the codecs used. Mkvmerge joins the streams of various media files in a single MKV file, while Mkvextract performs the opposite operation – it takes out a selected stream out of the container and save it as a standalone file. Mkvpropedit is used to modify the properties of an MKV file without extracting its contents or build a new one. With this utility, you can change the segment information elements (such as the title) and the track headers (the default track, the language code, etc.).

All of these functions are wrapped up in a convenient interface called mkvtoolnix-gui. This GUI turns all those more or less cryptic program names into more accessible options and tags, such as Multiplexer (to create new MKV files), Info tool, Header editor, or Chapter editor. Useful as it is, the interface itself (and some of the language used in it) is not the most straightforward video tool you may come across. Designed by experts, it does seem to be designed also for experts or, at least, for those who really know what a MKV file is and how it works internally. If you want to make the most of the various tools included in MKVtoolnix, you will need to do your homework first.

One great thing about this tool that all users will surely appreciate is its batch-oriented working flow. The last two tags in the program’s main interface, namely Job queue and Job output, will let you design all your multiplexing or stream extraction one at a time and launch them all in one single operation. Given that some of these operations may take some time to finish (especially if you use large BD video files as source), this batch processing approach is certainly a great add-on to this suite of tools.

Do not mistake this program with the average video conversion and compression tool – MKVtoolnix gathers a set of professional and high-quality MKV-related utilities aimed at video connoisseurs looking for an uncompressed HD video compact container for their beloved movies and other video files.


v5.9 [Dec 9, 2012]
--mkvmerge: bug fix: Fixed reading seek position values bigger than 2 GB. Fixes #805.
--mkvmerge: bug fix: Fixed appending non-empty tracks to empty tracks. Fixes #793.
--mkvmerge: bug fix: mkvmerge will now keep timecodes of PCM tracks from source files if they're available. Fixes #804.
--all: bug fix: EBML void elements will be skipped when reading structures from XML (e.g. chapters). Fixes #802.
--all: bug fix: EBML void elements will be skipped when saving structures to XML (e.g. chapters). Fixes #801.
--mkvmerge: bug fix: Fixed reading linked seek heads in Matroska files.
--mmg: bug fix: Fixed reading file names containing a '%' from a .mmg settings file (both normally saved files and the job queue files). Fixes #795.
--mkvmerge: enhancement: Dirac video code: Added four more pre-defined video types from Dirac spec v2.2.2 and two from Dirac Pro.
--mkvmerge, mmg: enhancement: Added options for turning off writing "CueDuration" elements ("--engage no_cue_duration") and "CueRelativePosition" elements ("--engage no_cue_relative_positions").
--mkvmerge: new feature: The element "CueRelativePosition" is
written for all cue entries.
--mkvmerge: new feature: The element "CueDuration" will be written for all cue entries referring to subtitle tracks.
--mkvmerge: new feature: mkvmerge will write cues for subtitle tracks by default now.
--mkvinfo: new feature: added support for the new elements CueDuration, CueRelativePosition and TimecodeScaleDenimonator. The denominator's value is only shown so far but not taken into account when calculating any timecode.
--mkvpropedit, mmg, mkvmerge: removal: removed support for the deprecated element TrackTimecodeScale.

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