Create, modify and inspect Matroska (MKV) files for Windows PC

MKVToolNix (64-bit)
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MKVToolNix 24.0.0 (64-bit)

  -  15.14 MB  -  Open Source
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Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of MKVToolNix 24.0.0 (64-bit).


For those interested in downloading the most recent release of MKVToolNix (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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Download MKVToolNix 24.0.0 (64-bit)
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  • MKVToolNix 24.0.0 (64-bit) Screenshots

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    MKVToolNix 24.0.0 (64-bit) Screenshot 1
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  • MKVToolNix 24.0.0 (64-bit) Screenshot 3

What's new in this version:

New features and enhancements:
- mkvmerge: MP4 reader: improved the detection of edit lists consisting of two identical entries, each spanning the file's duration as given in the movie header atom. The second entry is ignored in such cases
- mkvmerge: JSON identification: the "display unit" video track property is now reported as `display_unit`. The JSON schema has been bumped to v11 for this change
- mkvmerge, mkvextract: AVC/h.264: empty NALUs will now be removed
- mkvextract: VobSub extraction: empty SPU packets will now be dropped during extraction as other tools such as MP4Box cannot handle them correctly

Bug fixes:
- mkvmerge: E-AC-3 parser: fixed determining the number of channels for streams that contain an AC-3 core with dependent E-AC-3 frames
- mkvmerge: Matroska reader: fixed mkvmerge buffering the whole file if a video track is multiplexed that consists of only one or a few frames
- mkvmerge: the "display unit" video track property will now be kept if it is set in the source file
- MKVToolNix GUI: multiplexer: when scanning playlists, all playlists were offered for selection regardless of the value of the "minimum playlist duration" setting
- MKVToolNix GUI: multiplexer: deriving track languages from file names: the regular sub-expressions for ISO 639-1 codes could match on empty strings, too, causing matches in wrong places and hence no language being recognized in certain situations
- MKVToolNix GUI: header editor: fixed a crash when saving the file fails (e.g. because it isn't writable)
- MKVToolNix GUI: header editor: the editor was wrongfully claiming that mandatory elements with default values cannot be removed in the "status" text
- MKVToolNix GUI: preferences: on macOS & Linux the setting "enable copying tracks by their type" wasn't restored on program start

Other changes:
- Niels Lohmann's JSON library: the bundled version has been updated from v1.1.0 (git revision 54d3cab) to v3.1.1
- pugixml library: the bundled version has been updated from v1.8 to v1.9

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