.mkv -Cannot render the file

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Post by mra243 Thu Jan 27, 2022 4:42 pm

I have a bunch of .mkv movie files on a portable hard drive that I play on a laptop running Windows 10 Enterprise with version 16.3.5 of the codec pack. This laptop plays all of the .mkv files just fine.

I just purchased a new laptop which is running Windows 11 Home and I installed version 16.7.0 of the codec pack. When I try and play the .mkv files, the MPC-HC player tells me it 'Cannot render the file.' I get this same error for all of the .mkv files I have tried to play so far. The player has no issues playing .mpeg files.

I have tried installing the VLC player, but it will not play the files either.

mra243

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Post by Admin Thu Jan 27, 2022 5:43 pm

This is probably an issue with the access permissions of the files on the harddrive. They might be accessible only by the Windows user account of your other computer. You need to fix the file ownership and access permissions.

Open an administrative command prompt and run this command:
takeown /F "E:\" /A /R

Replace E:\ with the drive letter of your external harddrive.

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Post by mra243 Thu Jan 27, 2022 6:25 pm

I ran the takeown command, and it said it was successful:


C:\Windows\System32>takeown /F "D:\test" /A /R

SUCCESS: The file (or folder): "D:\test" now owned by the administrators group.

SUCCESS: The file (or folder): "D:\test\A_Dogs_Purpose.mkv" now owned by the administrators group.


I still see the same 'Cannot render the file' error.

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Post by Admin Thu Jan 27, 2022 9:56 pm

Also run this command:
ICACLS "D:\*" /reset /T

This resets the file permissions.

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Post by mra243 Thu Jan 27, 2022 10:52 pm

Nope, still will not play.

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Post by Admin Fri Jan 28, 2022 1:45 pm

Does playback work if you copy the file to you local harddrive?

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Post by mra243 Fri Jan 28, 2022 6:35 pm

No, it give the same error after copying the file to the local drive.

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Post by Admin Fri Jan 28, 2022 7:37 pm


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Post by mra243 Fri Jan 28, 2022 7:47 pm

That video plays, but with no sound.

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Post by Admin Fri Jan 28, 2022 9:03 pm

Copy this log here, so I can see what hardware you have:
Codec Tweak Tool > Generate Log

Have you tried re-installing the codec pack? The current installation might have been broken by other software.

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Post by mra243 Fri Jan 28, 2022 10:18 pm

Codec Tweak Tool | Log file | Generated at 2022-01-28 15:16:16

#####  System Information  #####

OS:           Windows 10 Home (10.00.22000) (x64)
CPU name:     11th Gen Intel(R) Core(TM) i7-11390H @ 3.40GHz
CPU details:  2918 MHz | 8 core(s) | Family 6 Model 140 Stepping 2
Memory:       16128 MB
Screen size:  1920x1080 (32bits) (60Hz) (125%)
GPU:          Intel(R) Iris(R) Xe Graphics
             VendorID: 8086, DeviceID: 9a49, SubSys: 0b241028
GPU memory:   1024 MB
GPU driver:   igdumdim64.dll (Version 27.20.100.9749) (6-24-2021)
Audio device: Intel® Smart Sound Technology for USB Audio
             VendorID: 8086, DeviceID: ae50
Audio driver: IntcUSB.sys (Version 10.29.0.6367) (8-25-2021)

#####  K-Lite Codec Pack  #####

KLCP version: 16.7.0
KLCP type:    full

Speaker conf: 2.0

MPC renderer: MPC VR (DX11)
MPC subs:     ISR
MPC audio:    Internal Audio Renderer
MPC decoder:  h264=D3D11VA hevc=D3D11VA vp9=D3D11VA vc1=0 mpeg2=0

#####  Decoder Settings #####

LAV Video:
H264=DXVA2CB HEVC=DXVA2CB VP9=DXVA2CB VC1=0 MPEG2=1 MPEG4=1 WMV3=0

LAV Audio:
MP3=1 AC3=1 DTS=1 DTSHD=1 EAC3=1 TRUEHD=1 AAC=1 Vorbis=1 LPCM=1 WMA=0

#####  DirectShow Filters (32-bit)  #####

(A total of 74 filters, 0 shown, 74 hidden)

#####  DirectShow Filters (64-bit)  #####

(A total of 73 filters, 0 shown, 73 hidden)

#####  ICM Class Manager (32-bit)  #####

(A total of 2 filters, 0 shown, 2 hidden)

#####  ICM Class Manager (64-bit)  #####

(A total of 2 filters, 0 shown, 2 hidden)

#####  Default source filters (32-bit)  #####

(A total of 64 default source filters, 0 shown, 64 hidden)

#####  Default source filters (64-bit)  #####

(A total of 56 default source filters, 0 shown, 56 hidden)

#####  ACM and VFW Codecs (32-bit)  #####

(A total of 14 codecs, 0 shown, 14 hidden)

#####  ACM and VFW Codecs (64-bit)  #####

(A total of 13 codecs, 0 shown, 13 hidden)

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Post by mra243 Fri Jan 28, 2022 10:19 pm

Yes, I have tried re-installing the code pack.

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Post by Admin Sat Jan 29, 2022 12:20 pm

Try these settings:
1) Media Player Classic options > Playback > Output > Video Renderer > Enhanced Video Renderer (Custom Presenter)
2) LAV Video Decoder settings (MPC-HC) > Hardware Decoder to use > None

VLC player uses its own internal codecs. So the fact that it also fails to play videos, indicates that something could be wrong with either the files or for example the graphics driver. But the downloaded file did play video.

I assume that playing videos in your browser also works normally? For example on Youtube.

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