The website[1] links to blip.tv for Kohacon 10 videos, but that site does not work. There has been a discussion on the mailing list before[2]. There is a working link at archive.org[3] which should be used instead. [1] http://koha-community.org/kohacon10-videos/ [2] http://koha.katipo.co.narkive.com/V4iZenr2/kohacon10-videos-unavailable [3] https://archive.org/details/KohaCon10
Updated the links, thanks for pointing that out.