Over the history of the web, many pages and much information has been deleted and removed from active search engines. But there are archives of some of this data.
One website is the wayback archive:
The archival sites do not archive video and audio but take snapshots of the sites on various dates and store these on their servers.
If you need to archive a website that has audio and video and animation we will demonstrate how to use PowerPoint's screen capturing tool and another program called BSR.