Cannot open video input on MeGUI

Asked By 20 points N/A Posted on -

Hi Everyone,

I have been using MeGUI for a few months now. I initially used it with windows vista and recently upgraded to windows 7, 64 bit and am using MeGui 64 bit. Now I seem to encounter a few problems with it. I could perform the following tasks with vista but all these fail to execute well windows 7. Here is a list of what I tried on Vista:

1. Opening an mkv-container with only one vc-1 video stream in it.

2. Tried opening the mkv-file in MPC_x64 and it plays without any issues.

3. Able to create and render a graph GraphEdit.

4. Tried loading the graph in VirtualDub and it renders well.

These steps ensured that the source file itself was not corrupted. Now I tried to accomplish the same on windows 7 and open the mkv file with the AVS Script Creator and get the following error message:

What should be done to fix this problem? Please help. Thanks in advance.



The file DirectShowSource(“E:Demuxed0221.track_4113.mkv”, audio+false,fps=23.976,convertfps=true) cannot be opened.

Please make sure it’s a valid AviSynth Script and AviSynth Installation by opening the file in your favorite media player.

If that works, try opening the video in VirtualDub(Mod) as well. If the former works and the later doesn’t, installYV12 codec. Error message for your reference: An attempt was made to load a program with the incorrect format (exeption from HRESULT : 0x8007000B)

Answered By 577265 points N/A #185703

Cannot open video input on MeGUI


If you upgraded your operating system from Microsoft Windows Vista to Microsoft Windows 7 x64, maybe you did not reinstall your application after the upgrade. This is necessary because reinstalling the program is like activating it on the new operating system. The program will not work if you immediately run it after the operating system upgrade because its original installation was meant for the old operating system.

To fix it, uninstall MeGUI then click Start, All Programs, Accessories, System Tools, and select Disk Cleanup. Select drive C and click OK. Check “Temporary files” and click OK. Wait until it is finished and restart your computer. Install MeGUI and try playing the MKV file again. See if it works. MeGUI is available in x86 version but I think it will still run on Windows 7 x64 under 32-bit compatibility mode.

If you are using the old version, download the latest version from MeGUI Download. If you encounter a different error, try running it as administrator. Right-click on the program’s icon or shortcut on your desktop and select Properties. Go to Compatibility tab and check “Run this program as an administrator” under Privilege Level and click OK. Run the program again and see if it works.

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