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Windows 7: MKV and MP4 Files - Merge into a Single File

MKV and MP4 Files - Merge into a Single File

How to Combine Multiple MKV or MP4 Segments into 1 File
Published by Wishmaster
15 Sep 2010
Published by

How to Combine Multiple MKV or MP4 Segments into 1 File

If you have multiple .MKV or MP4 files that you would like to to merge together, forming a single MKV file, without recoding, this tutorial will show you how.

You will need MKV merge for this task.

For MeGUI Users:
The MKV Merge GUI can be found in the 'Tools" folder in the installation directory.
By default: "C:\Program Files (x86)\MeGUI\Tools\mkvmerge\mmg.exe


If you do not have MeGUI, or MKVToolNix, you can get it here:
Index of /videotools/mkvtoolnix/win32/

Scroll down to the bottom for the latest versions.

There will be 2 versions.
1 is a installer version, one is a zip file containing all thats needed.

For the purposes of MKV merge, it does not need to be installed, and the 7-zip package is perfectly fine, unless you wish to install it. Your Choice here.

Once extracted, you will have a folder called, mkvtoolnix.
It contents will be the exact same as the MeGUI/Tools/MKVMerge Folder.

((Please make note, you will still need Haali Splitter))

How to Merge the Files

1) Open MKVMerge by Double Clicking the MMG.Exe file the toolkit.
You will have a GUI that looks like one in Step 2

2) Click the Add button, and add the first video clip.

Please not, that it does not have to be a MKV file as the source. This works for MP4 as well.

As usual with MKV Merge, you will have a list of all streams this video contains.

3) Next, to "merge" another video:
Click the Append button, and choose the next clip you wish to add
Do not add!

The next clip will follow the 1st in play order.

As you can see, as indicated by the ++> symbol, this will be merged into the first video, imediatly following it.

4) Repeat the append step for each video you wish to add.

5) Once you have added all you wish too add, Click the Browse button in the Output section at the bottom, and choose a save location, and name you Combined Video as you see fit.

6) Press Start Muxing.

Thats it :)
Hope this is useful.
15 Sep 2010   #1

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86

Nice. I'm a fan of MKV but alas its not a very popular format. We need more info and tuts like yours. Cheers!

My System SpecsSystem Spec
15 Sep 2010   #2

Windows 7 Home Premium 64bit

Thank you for the kind words :)
My System SpecsSystem Spec
11 Feb 2011   #3

Windows 7 Home Premium

MKV is coming on big time. Seems like everyone is using it for HD videos, Thanks for the headsup on this app.
My System SpecsSystem Spec

13 Apr 2011   #4

Windows 7 Ultimate x64

Why where is no thumbnail after merging? I have thumbnails for all my mkv's except for ones I merged with mkvmerge. Any ideas how to fix it? Thanks
My System SpecsSystem Spec
14 Apr 2011   #5

Windows 7 Home Premium 64bit

Are you using Sharks codec package with the DIVx thumbnailer?

The only reason I can think of ATM, is its catching it a point where the image is black to create the thumb.

I have run into this problem on just a few MKVs, but overall the thumbs work properly.

There have also been a couple that I was able to fix by dleteing the thumb cache, and re-making them. Bear in mind, this deletes all thumbs however.
My System SpecsSystem Spec
14 Apr 2011   #6

Windows 7 Ultimate x64

No I am using K-Lite Codec Pack 32 and 64 bit both (I have win 7 x64).
My System SpecsSystem Spec
14 Apr 2011   #7

Windows 7 Home Premium 64bit

I must admit, I am not familiar with K-Lite, only Sharks.

I do know MKVs often show a black thumbnail, but the Divx MKV thumbnailer works nicely, included in his pack.

being as thats the only one I use, and am familiar with, Im really not sure what to suggest. Perhaps other K-Lite users would have more info.
My System SpecsSystem Spec
14 Apr 2011   #8

Windows 7 Ultimate x64

I think I'll try Sharks codecs just have one question. Do I need to install both x32 and x64 codec versions on WIN 7 x64?

Windows 7 Codecs and x64 Components addon ?
My System SpecsSystem Spec
14 Apr 2011   #9

Windows 7 Home Premium 64bit

If you plan on using WMC or WMP x64, yes.

If you only use the x32 WMP, the 32bit should be all thats needed.

None the less, I would go ahead and install both. Just be sure to completely remove K-Lite first.
My System SpecsSystem Spec

 MKV and MP4 Files - Merge into a Single File

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