That Dude In The Suede is an Anime internet critic from the Channel Awesome review site (formerly That Guy With The Glasses). In 2008, shortly before he was added to the site, he made a rant video criticizing YouTube's policies, in response to Doug Walker having his Five-Second Movies and early Nostalgia Critic reviews taken down for "copyright violations" even though his reviews were under the "fair use" clause. The video impressed Walker so much that Suede became one of the first critics added onto the site.
Suede promised that once the whole issue cooled down that he'd remove the video from YouTube. He kept his promise and the video hasn't been seen anywhere on the internet since. No mirror has ever been found and Suede doesn't even have a copy of the video, as he only saved it onto a now long-dead college computer.
This is proof that even in the era of the internet, media can still go missing.