If you are looking for the technical content originally contained in that video, do not use third-party file-sharing mirrors. Instead, use these official or reputable developer resources:
: A reliable, open-source alternative for Windows, Mac, and Linux available at videolan.org . 552.m4v - BayFiles
BayFiles was a file-hosting service that has been . Because the original site is offline, any links currently claiming to host this file on "BayFiles" are likely redirects to malware, phishing sites, or intrusive advertisements . Guide to Accessing the Content Safely If you are looking for the technical content
: The community-driven WWDC app for macOS provides a searchable interface for nearly every session ever recorded, often including transcripts and sample code. open-source alternative for Windows