But for the vast majority of modern content—especially streaming video—the reality is disappointment. Attempting to download a YouTube video from a 2015 snapshot of a blog will fail because the Wayback Machine only archived the embed window. The actual video payload never resided on the blog’s server; it was streamed from youtube.com . The archiver recorded a reference, not the substance. Users who employ browser extensions or developer tools to hunt for video files within the archived page are often chasing a phantom. They will find JavaScript that would have called a video, but the video server itself is long dead or the API keys have expired.
You tried everything, but the video won't download. Here is why:
If the video is lost, check the "Save Page Now" feature. If you have the original video file on your computer, you can upload it to the Wayback Machine yourself to preserve it for the future.
There are several reasons why you might want to download videos from the Wayback Machine: