Two Ways: Burn MKV/MP4 to Blu-ray disc with TrueHD (Dolby Atmos)


    TrueHD(Dolby Atmos) is a lossless, high-quality audio format often found in MKV/MP4 files extracted from Blu-ray movies. While many Blu-ray authoring software programs can burn MKV/MP4 files to Blu-ray discs, they often fail to preserve TrueHD(Dolby Atmos) audio tracks. Fortunately, there are solutions that address this issue. This article introduces two Blu-ray authoring software options capable of preserving TrueHD(Dolby Atmos) audio, ensuring that the high-fidelity sound quality is maintained during the burning process. By using these tools, you can enjoy the full audiovisual experience as it was originally intended.

Are you looking for Blu-ray authoring software that can burn MKV/MP4 files to Blu-ray while preserving TrueHD (Dolby Atmos) audio? This can indeed be challenging. TrueHD (Dolby Atmos) cannot exist independently on Blu-ray; it needs to be merged with an AC3 audio track to form an AC3+TrueHD(Dolby Atmos) audio track. Additionally, AC3+TrueHD (Dolby Atmos) audio tracks cannot be contained within MP4/MKV files as a single track; they will appear as two separate audio tracks. Therefore, the Blu-ray authoring software must merge them into an AC3+TrueHD track when converting them to the M2TS format.


If your MKV/MP4 file includes a TrueHD (Dolby Atmos) audio track, you need an accompanying AC3 audio track. Then, you can choose Blu-ray authoring software that supports merging AC3+TrueHD (Dolby Atmos) audio for burning to Blu-ray. If your MKV/MP4 file only contains a TrueHD (Dolby Atmos) audio track without AC3, you can use third-party software like HandBrake( to convert and add an AC3 5.1 channel, 640Kb audio track, then composite it back into the MKV/MP4 file.




Part 1: Easy Way: Using Yuhan Blu-ray Creator

So far, Yuhan Blu-ray Creator stands out as the only Blu-ray authoring software that can retain TrueHD (Dolby Atmos) audio in MKV/MP4 formats, seamlessly merging TrueHD(Dolby Atmos)+AC3 into a single audio track to comply with Blu-ray standards. Additionally, it boasts numerous other advantages.


Firstly, it supports multiple audio tracks and subtitles, including the ability to add external subtitles such as SRT and SUP. Secondly, the software offers over 20 menu templates and extensive customization options, allowing users to create personalized discs. It also includes unique features like "First Play," "Skip Menu," and "Highlight Color," which are not commonly found in other Blu-ray authoring software.


Furthermore, with the increasing prevalence of HDR videos, many Blu-ray authoring tools struggle with color washed out when processing HDR content. Yuhan Blu-ray Creator addresses this issue with specialized HDR processing that preserves the original colors, ensuring no loss of quality.


Key Features of Yuhan Blu-ray Creator:

  • Burn MKV/MP4 to Blu-ray with TrueHD (Dolby Atmos)
  • Support multi-audio track and subtitle
  • Support "First Play", "Skip Menu"
  • Import chapter information directly from MKV/MP4
  • Available for Windows and Mac


Before we introduce it, we need to download and install Yuhan Blu-ray Creator. If your computer is Windows, please click the red button below to download the Windows version, and if your computer is Mac, click the blue button below to download the Mac version.




Step 1: Add MKV/MP4 Files

First, we need to check if the MKV/MP4 file contains both a TrueHD(Dolby Atmos) audio stream and an AC3 audio stream. If the file only has a TrueHD(Dolby Atmos) audio stream, we should convert the TrueHD(Dolby Atmos) stream to a 5.1 channel, 640 Kbps AC3 audio stream using an appropriate tool. After converting, we will composite the new AC3 audio stream into the MKV/MP4 container, resulting in an MKV/MP4 file that contains a video stream, a TrueHD(Dolby Atmos) audio stream, and an AC3 audio stream. I recommend using the free tool MKVToolNix for compositing video streams, audio streams, and subtitles into MKV containers.


Open Yuhan Blu-ray Creator and click "Add Video" to add your MKV/MP4 file. Check the audio tracks to see if AC3 is present. As shown in the screenshot below, you can leave AC3 unchecked. Yuhan Blu-ray Creator will automatically composite TrueHD(Dolby Atmos) and AC3. You can also adjust other settings such as disc size, frame rate, and more.



Step 2: Select the "Audio Copy" function of Yuhan Blu-ray Creator

MKV and MP4 files often contain both a TrueHD (Dolby Atmos) and an AC3 audio stream, while the Blu-ray standard requires a mixed AC3+TrueHD stream. To meet this requirement, you need to merge the AC3 and TrueHD streams into a single audio track. Most Blu-ray authoring software is unable to perform this merge, typically only copying pre-mixed AC3+TrueHD streams. However, Yuhan Blu-ray Creator can accomplish this using its "Audio Copy" feature. To do so, select "Audio Copy" and enable "Blu-ray & UHD Processing Mode" in the software's settings dialog box. Note that for TrueHD in MKV/MP4 files, you must not select the "Passthrough" option.



Step 3: Set video (optional)

Yuhan Blu-ray Creator offers user-friendly tools to crop your video and set the start and end times. Additionally, it supports chapter creation. If you choose to display the scene menu as chapters, these chapters will appear in the menu. To access these features, simply click the edit button next to the video item.



Step 4: Choose a menu template and personalize it

A disk menu is crucial for Blu-ray authoring, and fortunately, Yuhan Blu-ray Creator offers 24 disk menu templates along with numerous customization options. You can set the menu's background image, add background music, and even use a video as the menu background. Additionally, the software supports displaying content in both file and chapter units, accommodating a variety of preferences.



Step 5: Burning Setting

After setting up the menu, click the "Start" button to enter the burning settings. Some users prefer to burn video content to a Blu-ray Disc for viewing on a big-screen TV, while others choose to create a Blu-ray ISO for online sharing. Fortunately, Yuhan Blu-ray Creator supports both Blu-ray Disc and ISO output, catering to everyone's needs. You can also customize the disc volume.



Step 6: Start authoring

After completing all the previous steps, simply click the "Start" button to begin creating the disc. When both progress bars reach 100%, your disc creation is complete.



Part 2: Another Way: Using TsMuxer

TsMuxer is a free Blu-ray authoring software available for both Windows and Mac operating systems. Despite its small size, it boasts powerful features. This tool enables users to convert video files encoded according to Blu-ray specifications into Blu-ray folders and Blu-ray ISO images. It supports multi-audio tracks and multi-subtitles, allowing for versatile customization. Additionally, users can add chapters to their Blu-ray projects. TsMuxer also offers support for external subtitle formats such as srt and sup.


One of TsMuxer's notable features is its Passthrough mode, which ensures rapid processing speeds without compromising video and audio quality. However, it's essential to adhere to Blu-ray standards for the source file encoding, including requirements such as H264 video encoding and resolutions of 1080P or 720P.


TsMuxer supports TrueHD (Dolby Atmos) audio, but requires converting the TrueHD audio stream into a composite stream of TrueHD + AC3. To do this, you need to regenerate a .thd+ac3 file. Once you have this file, you can add it to TsMuxer along with the original MKV/MP4 file. We recommend using a small tool called eac3to, which can easily convert a TrueHD audio stream into a TrueHD + AC3 composite stream.



Step 1: Convert TrueHD to TrueHD + AC3

You need to use TsMuxer to extract the TrueHD track from mp4/mkv, and then use the tool eac3to run the command eac3to, which will generate the TrueHD + AC3 file



Step 2: Add MP4/MKV files and thd+ac3 files.

After adding these two files, TsMuxer displays a total of four streams. The video file contains three streams: an H264 video stream, a TrueHD audio stream, and an AC3 audio stream. The file is an AC3 + TrueHD composite stream. At this point, you need to select the video stream and the AC3 + TrueHD composite stream, while ensuring the separate TrueHD audio stream and the separate AC3 audio stream are not selected, as illustrated in the figure.



Step 3: Start muxing

In the above picture, please check "Blu-ray ISO" in the Output option, then set the Disc Label, and then click the "Start muxing" button, TsMuxer will start working. After completion, if you want to burn to a disc, you can refer to here:


Part 3: Conclusion

From the introduction above, we understand that MKV and MP4 formats do not support TrueHD+AC3 mixed streams, whereas Blu-ray specifications require them. We discussed two Blu-ray authoring software options: Yuhan Blu-ray Creator and TsMuxer. Yuhan Blu-ray Creator can automatically merge TrueHD and AC3 audio streams into the Blu-ray format. In contrast, TsMuxer requires the use of the eac3to tool to combine TrueHD and AC3 into a single file before creating a Blu-ray ISO. You can choose the method that best suits your needs.