Open a Wistia video on your Google Chrome, right-click anywhere of the video
and click “Copy link and thumbnail”.
Open a text editor on your computer, paste the copied link into
it to find the video code. In this case, “a74mrwu4wi” is the thing that I need.
Add the code to the end of “https://fast.wistia.net/embed/iframe/" , so that
we will get a new link that is “https://fast.wistia.net/embed/iframe/a74mrwu4wi”.
Copy and paste the new link into a new tap on Google Chrome and we will get
the real video contained in the link.
Come to the bottom right corner of the video, click the gear icon and
then click Quality option to select the desired quality format.
In this case, we choose “1080p” as the output quality option.
Then, move mouse to the position of the URL, and input the word of “view-source:”
or simply check source code on that url by keyboard shot ctrl+U
open video source page
Enter “Command + F” on the keyboard (Enter "Ctrl + F" if you are a Windows user),
input “1080p” into the search bar and find it. Then, look for the URL
ending in .bin extension near 1080p. Plus, the URL is in front of 1080p.
In this case, it is
“https://embed-ssl.wistia.com/deliveries/063de8cf58795ff2b6643a82f5a17ddcb4a2b5e1.bin”.
Copy and paste the real URL into a new tap, change .bin to .mp4,
and tap Enter. You will see a video that can be downloaded.
source https://www.cisdem.com/resource/download-wistia-videos.html#Chrome