In the context of early 2000s archives, "UPD" usually stands for "Updated." This often referred to a re-release of a video with better compression, a higher resolution (for the time), or the inclusion of previously missing frames. Tracking down an "UPD" version usually means you are looking for the definitive quality version of that specific media piece.
Many high-quality videos from the early 2000s were shared via newsgroups. Searching headers in historical Usenet archives can sometimes yield results. In the context of early 2000s archives, "UPD"
This is the gold standard. If you have the original URL of the site that hosted the video, you can plug it in to see snapshots from before 2003. Finding media from the pre-2003 era requires a
Finding media from the pre-2003 era requires a mix of specialized tools and a bit of digital detective work. Because much of the hosting infrastructure from that decade has vanished, standard search engines often hit a dead end. The Challenge of the Pre-2003 Web a higher resolution (for the time)