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BD3D2MK3D is a GUI to convert movies from 3D BDs to 3D MKV video files in Full or Half Side by Side, Top & Bottom or Frame sequential format, encoded in h264 with x264 (or in h265 with x265). Since v0.87, BD3D2MK3D can also accept lossless 3D AVC+MVC files created with MakeMKV as input.

Free software
OS: Win
File size: 62MB
Portable version
Old versions
Version history
13 votes
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BD3D2MK3D screenshot
Latest version

1.33 (April 6, 2023)


Visit developer's site

Download BD3D2MK3D 1.33  62MB  Win  Portable

Download old versions

Download BD3D2MK3D old versions

Software License

Free software / FOSS (Free download and also Free and Open Source Software)

Supported operating systems


Version history / Release notes / Changelog / What's New

v1.33 (April 6, 2023)
- Added Options -> Hardware Players Compatibility Options as a workaround for serious bugs of some hardware players (notably those based on the Bigscreen software). Thanks Archon!
- Added Tools -> Modify 3D format tags in MKV or AVC to fix the frame-packing and stereo-mode information in any MKV file with an AVC video stream.
- Added Videofan3D's h254Modify.exe in the toolset folder (required for Tools -> Modify 3D format tags in MKV or AVC) as well as sfk.exe.
- Added Help -> Check for Update to easily download the new BD3D2MK3D version (if any). Requires Windows 10 or greater.
- Modified the dead CinDe download link in Help -> Cinavia Detection -> Download CinDe (free) and updated the How to Detect Cinavia? message.
- Updated x264 to the latest version (v0.164.3106)
- Updated x265 to the latest version (v3.5+96)
- Updated mkvtoolnix to the latest version (v75.0.0 'Goliath')

View full changelog

All features

Convert any 3D playlist from a properly decoded blu-ray 3D to a standalone Half-side by side or Half-top & bottom (aka Over/Under) 3D MKV file.
Can also accept as input a 3D-MKV file created with MakeMKV (with the option to include the 3D MVC stream).
Can optionally convert to Full-SBS, Full-T&B or Full-Frame Sequential 3D.
Can resize the output to 720p
Can output a 3D stream compatible with 3D-Ready DLP projectors (720p Frame Sequential at 59.94fps).
Can convert the subtitle streams to 3D, using the depth stored in the original BD for each individual subtitles. (The subtitles can also be kept in 2D if you wish.)
Can hardcode (or "burn") a subtitle stream (all or forced captions only) over the video with the right depth for each individual subtitles.
The subtitles can be muxed in the original BD SUP format for an excellent quality or in VobSub (IDX/SUB) format for a better compatibility.
It is even possible, with some manual work and the help of the Tools menu of BD3D2MK3D, to use a subtitle stream coming from another source (such as a SRT downloaded from the internet or a SUP stream from the 2D BD of the same movie) and convert it to 3D with (approximately) the right depth values to mux it within the final MKV or hardcode it to the video. See the mini guide here.
Can extract the regular 5.1 DTS or AC3 cores of the DTS-HD, DTS-HD-MA, E-AC3 and TrueHD audio streams.
Can convert the audio tracks to AC3 or AAC for a better compatibility or a smaller file size.
The chapter points are automatically preserved in the final MKV file.
Can include tags about the movie (movie title, director, producer, actors, summary, comments, etc...)
Can add some seconds of black at the beginning or end of the video so that the user has some time to configure his 3D TV and to turn his active 3D glasses on before the beginning of the movie.
The encoding to h264 is made with x264 (32 or 64-bit) for an excellent image quality, and the user can select the most important encoding settings, such as the encoding mode (CQ, CRF, ABR or 2-pass), the preset, tune, profile and level. It can also specify manually additional options if he wish.
The correct 3D video mode is automatically defined in the h264 video stream (the "frame-packing"), in the header of the MKV video file (the stereoscopy mode), and optionally in the file name, so that most TVs and 3D players can switch automatically to the right 3D mode when the file is played.
The final MKV file is automatically muxed at the end of the encoding, and there is an option to shutdown the computer when everything is finished.
BD3D2MK3D has also some independent tools, notably powerful tools to convert an external subtitle stream to 3D, using the 3D depth values extracted from the original 3DBD, and optionally the subtitle positions cloned from another subtitle file.
And much more...

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Acronyms / Also Known As


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13 reviews, Showing 1 to 5 reviews

Rating by ecou2508 on Mar 29, 2024 Version: 1.33 OS: Windows 11 64-bit Ease of use: 8/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10

For anybody using MacOS - I can confirm it works via wineskin. And is great at what it does :)

Review by grafx on Nov 2, 2023 Version: 12.7.1 OS: MacOSX Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10

I can't for the life of me get my files working in BigScreen video player. (if I play them in VLC and make my desktop 3D, they work fine)

They also work fine on my Panasonic Plasma TV, but NOT on my brothers projector.

But in BigScreen....they look 2D....if I tell it HSBS, it shows half of 1 side to 1 eye, and the other half to the other eye. (splitting a 2D image, even tho the file is clearly dble image SBS in VLC)

Some files that I did NOT personally RIP, play fine in BigScreen....I can't find the differences. :(

Review by Jim Beam on Mar 22, 2023 Version: 1.32 OS: Windows 11 64-bit Ease of use: 6/10 Functionality: 8/10 Value for money: 10/10 Overall: 9/10

@ecou2508: You can add any Avisynth filter. Just edit the __ENCODE_3D_MOVIE.avs script to suit your needs, and launch the encoding normally.

@madipav: BD3D2MK3D is a tool to convert a 3D BD (optionally decrypted by MakeMKV) to MKV 3D in SBS, TAB or FS format. It is NOT a tool to recompress another MKV file.

For more information, please use the forum. Use this page only for reviews. And please don't review a tool you cannot use properly.

Review by r0lZ on Apr 26, 2020 Version: 1.19 OS: Windows 10 64-bit Ease of use: 8/10 Functionality: 9/10 Value for money: 10/10 Overall: 9/10

If the author could add somme filters like in HandBrake, for by example, noise reduction(HQDn3d or NLMeans). I recently backup my Top Gun 3D version (legend3D Studio 2013): Post production 3D is really excellent but the movie is too grainy (just my opinion). So i would like to have a way to reduce noise without loosing 3D metadata for frame sequential (the 3D format i've used in this case, my 3D TV is a LG C6V that accept major 3d formats like even full tab et full sbs without loosing resolution).
Anyway, BD3D2MK3D is already a wonderfull tool. Thanks to its author.

Review by ecou2508 on Feb 12, 2020 Version: 1.19 OS: Windows 10 64-bit Ease of use: 8/10 Functionality: 7/10 Value for money: 10/10 Overall: 8/10

13 reviews, Showing 1 to 5 reviews

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