Open the Video tab and find the icon associated with the format you want to use. Since you want to convert MKV to MP4 on a Mac, you will want to select the MP4 icon. You will then see a list of MP4 formats. Choose the one that best meets your needs. After installing Perian and Movist (a video player software), I believe that I have solved most of the problems for mkv files in Leopard. I can play.mkv videos in either Quicktime or Movist, and I can tap the spacebar to quicklook the video when browsing in Finder.
Tip
- .MKV Thumbnails on Catalina - QLVideo now works! I don't know if anyone has posted this, apologies if this is a duplicate. The QLVideo plugin to get.mkv thumbnails has been updated from February 2019's High Sierra/Mojave version 1.92 to version 1.93 that is compatible with 10.15.x Catalina.
- Part 1: 5 MKV Video Players for Mac OS X. It should be noted that even though MKV has been a popular format accepted by many players and devices, Apple has not included it into its native support of QuickTime player. Therefore, if you want to play MKV on Mac, you need to make use of other solutions.
Hey
Every so often you will come across a video that has a pretty rubbish thumbnail. Most of the time a video thumbnail in Quicklook will show the first frame. But you can easily change the thumbnail with only the couple of steps. For this example (which isn’t the best) I am going to use Experiment Of The Week, which is a great video if you want to subscribe.
The first step is to locate your file. If you set Quicklook in Finder you will see you video displayed with the thumbnail.
If you open up the video in QuickTime and select the frame you want. You can pick any frame you want. Then press Edit > Copy or Command + C. This will copy the frame to you clipboard.
How To View Mkv Files
The next step is to Get Info on you video file. Right click on the file and select Get Info. Then select the small thumbnail in the top left corner and press Copy and Paste.
This will paste the frame into the thumbnail of the video. It will then be used for every thumbnail shown. The quality of the thumbnail will depend on the image you chose. You can also images from other sources.
If you ever want to change it back. Press Get Info again select the thumbnail and press delete. It will then revert back to original thumbnail and you are done.
Mkv Video File
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How To Open Mkv Video
If you open up the video in QuickTime and select the frame you want. You can pick any frame you want. Then press Edit > Copy or Command + C. This will copy the frame to you clipboard.
How To View Mkv Files
The next step is to Get Info on you video file. Right click on the file and select Get Info. Then select the small thumbnail in the top left corner and press Copy and Paste.
This will paste the frame into the thumbnail of the video. It will then be used for every thumbnail shown. The quality of the thumbnail will depend on the image you chose. You can also images from other sources.
If you ever want to change it back. Press Get Info again select the thumbnail and press delete. It will then revert back to original thumbnail and you are done.