The RSA conference counter-conference TrustyCon livestreamed its videos and made the seven hour video available. Al Billings wasn't happy with that, and split the videos into segments for easy viewing. Quoting: "I don't know about you but I like my viewing in smaller chunks. I also tend to listen to talks and presentations, especially when there is no strong visual component, by saving the audio portion of it to my huffduffer account and listening to the resulting feed as a podcast. I took it on myself to do a quick and dirty slice and dice on the seven plus hour video. It isn't perfect (I'm a program manager, not a video editor!) but it works. ... Additionally, I extracted the audio from each of these files and put an audio collection up on the Internet Archive, for people like me who just want to listen to them." The videos are collected into a Youtube playlist.