A wide variety of video material distributed by the Chaos Computer Club. This feed contains all events from 33c3 as mp3
https://media.ccc.de/c/33c3
Reverse engineering Outernet (33c3)
Outernet is a company whose goal is to ease worldwide access to internet contents by broadcasting files through geostationary satellites. Most of the software used for Outernet is open source, but the key parts of their receiver are closed source and the protocols and specifications of the signal used are secret. I have been able to reverse engineer most of the protocols, and a functional open source receiver is now available. about this event: https://fahrplan.events.ccc.de/congress/2016/Fahrplan/events/8399.html