Lightroom CC: Videos not working (Windows 7)

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  • Updated 2 years ago
  • (Edited)

Lightroom used to play videos (.mov, etc) but cc is not only not playing them but also hanging up when importing them. I reinstalled the program and it worked once fine. I thought it was OK but then it stopped working even with those files and wouldn't import any video at all. Working with video is an important feature these days!!!

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Tom Stephenson

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  • very frustrated; many hours trying to fix this

Posted 2 years ago

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Rikk Flohr, Official Rep

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Windows or Mac?
OS Version?
Lightroom Version (Help>System Info...)
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Simon Chen, Principal Computer Scientist

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If you check the Task Manager (Windows) or the Activity Monitor (Mac), do you see two processes named "dynamiclinkmediaserver"/"dynamiclinkmanager" running when Lightroom is launched?
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Tom Stephenson

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Hi. Thanks for your help. I'm on a PC windows 7 64-bit. When I launch LR I do see a process called dynamiclinkmediaserver running. 

Also, someone suggested I change the default media player for .mov and other movie files to Windows Media Player. I did this and LR then imported two short clips which played fine. But now every time I try and import another clip if fails and if I go back to the finder I can see that the default has been changed BACK to Quicktime!  

Thanks very much for any help you can give. I'm working on a book and all of my reference materials for the audio are in these clips. (audio spectrogram jpg with the audio embedded as part of the video; however I have tried all kinds of movie files with the same results)

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Tom Stephenson

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Hi again. The other process is also running, so I see both the dynamiclinkmediaserver and the dynamiclinkmanager....


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Tom Stephenson

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I uninstalled Quicktime and rebooted. LR seemed to work (this had happened before right after a reboot). I imported a short clip and it worked. Then another and OK (first time for a second one). Then another and the importing hung up. Now when I bring up the prior two they don't play. When I hit the space bar it just jumps back to the grid view. When I click on the play button nothing happens.

So I thought I'd delete them all and start again. I searched for .mov and the catalog couldn't find any of the movies I just imported...

So I went to the folder view and deleted them from there. It's almost like LR lost the .mov part of the file name??

I'm going to try a few more things but that's what I have so far...

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Tom Stephenson

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OK. I deleted the first two files I"d imported. I tried to re-import them. The importing process seems like it's hanging up, but if you wait for 5-10 minutes it finally stops and gives this error message:

An unknown error has occurred while reading the video file. Connecting to dynamic link server failed. (1)  I've attached a screenshot.

Thanks for your help on this. I really need to get it solved as soon as I can.

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Tom Stephenson

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I quit LR, reset the default to windows media player then relaunched LR. I tried to import the first video (that had worked before) and I get the same "hang up" and then the error message I sent a minute ago.
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Yuhong, Employee

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In terms of your system info, the video graphics card works well, and everything looks good. Lightroom should be able to connect to Dynamic Link Media Server without any problem.
It does not seem like a common problem, but a problem is happened on your particular Windows machine. Do you have any other machine, and see if Lightroom works well? Or, Can you install a clean Windows OS and see if the problem has gone? 
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Tom Stephenson

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Unfortunately, installing a clean OS is a very dangerous and difficult process!

I do have some news...I reinstalled LR and it worked OK with .mov files. All seemed good. But then I tried to import some other movies and I got the same errors and LR stopped playing the other files also. Rebooting LR, however restored the movies that were working. So I think there must be some movie formats that mess up LR and cause it to not be able to import anything or use any  movies until it's rebooted or reinstalled. Have you heard of this?  I can send you some of those files if they would be helpful.