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The Wayback Machine archives videos from various websites and saves them directly to its own servers. This includes sites like Gfycat, where the videos are stored on the Wayback Machine's servers after being archived.

However, YouTube videos are a bit different. While the Wayback Machine can archive the web pages that host YouTube videos, it doesn't always archive the video files themselves. This is because YouTube videos require a special index to be played back, and sometimes this index is not captured during the archiving process. Additionally, YouTube's terms of service and technical measures can prevent the Wayback Machine from fully archiving and playing back these videos.