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Why can't same file types play in PPT?

Anonymous
2023-01-24T20:16:05+00:00

I have 2 .mkv videos. One will play fine in PPT and the other says it can't play the video because it can't load the codec. Shouldn't they be the same codec? They both run fine using VLC Player.

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Anonymous
2023-01-25T20:28:40+00:00

I ended up finding another post where it said to download the K-Lite_codec standard package. I did that and this worked. The interesting thing is that all of the files used to work just fine in PPT. Not sure what got changed as I didn't install any codecs when it was working. Once I installed that package, opened the PPT files that were having issues with only certain .mkv files, PPT said it needed to convert the video files. It did and all works fine. I hope someone else finds this useful. It was painful not getting a response that helped.

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  1. John Korchok 232.8K Reputation points Volunteer Moderator
    2023-01-25T20:18:59+00:00

    Video files have two parts: the container file, which is .MKV, and the encoded contents, which can use a variety of codec. You have to have compatibility with both the container and the codec to play the file. Here's my article on the subject, with more detail: Video Formats – Best Practices

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  2. Anonymous
    2023-01-25T00:54:51+00:00

    Dear Tim,

    Welcome to the forum here.

    From your description, it seems that the video can't be played on the PowerPoint file has the same format and code as the one which can be played on the PowerPoint file.

    If it is convenient, I suggest you first upload the affected PowerPoint file onto OneDrive for Business or SharePoint Online and then open it in PowerPoint for the web to see if the issue occurs.

    If it is convenient, I'd like you to provide the video you can play in the PowerPoint file and the video which can't be played in the PowerPoint file for us to do a test in our environment. If the videos and the video links can be shared publicly, please add your confirmation and provide the video links here directly. If no, welcome to let us know and we will take the next step to collect the videos.

    Thanks for your effort and time!

    Sincerely,

    Cliff | Microsoft Community Moderator

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