We now have new torrent links in and eMule collections for most of the past DEF CON Media. For torrents, there are many clients including BitTorrent (most platforms), uTorrent (most platforms), and Transmission (OS X, Unix, Linux, and some embedded systems).
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DEF CON: The Documentary
DEF CON the Documentary in 720p: 
Torrent
DEF CON the Documentary in 1080p:
Torrent
DEF CON the Documentary - all files including music, extra clips, and
interview: Torrent
DEF CON Documentary soundtrack: Check out the music from the artists (Zoe Blade, Broke For Free, Chris Zabriskie, Revolution Void, The Insiders, and others) that made the DEF CON Documentary soundtrack possible! Torrent
DEF CON Documentary extra bonus clips: 21 Extra clips that didn't make the documentary. Interviews, background stories, and past trivia. If you finished watching the DEF CON Documentary wanting more, here it is! Torrent
Multi-year collections:
All Conference CDs and DVDs with Presentation PDF files (updated 2015): Torrent | 
Emule collection
All Conference Programs: Torrent | Emule collection
DEF CON Filler from DCTV: Torrent
HACKER RELATED DOCUMENTARIES:
Collection of Hacker Documentaries hosted on defcon.org (Updated to include DEF CON: The Documentary and Sneak Peek): Torrent
DEF CON 1
Speeches:
Collection of all Content from DEF CON 1: Torrent
Collection of all Audio from DEF CON 1: Emule collection | 
RSS Feed
DEF CON 2
Collection of all Content from DEF CON 2: Torrent
Speeches:
Collection of all Audio from DEF CON 2: Emule collection | RSS Feed
DEF CON 3
Collection of all Content from DEF CON 3: Torrent
Speeches:
Collection of all Audio from DEF CON 3: Emule collection | RSS Feed
DEF CON 4
Collection of all Content from DEF CON 4: Torrent
Speeches:
Collection of all Audio from DEF CON 4: Emule collection | RSS Feed
DEF CON 5
Collection of all Content from DEF CON 5: Torrent
Speeches:
Collection of all Audio from DEF CON 5: Emule collection | RSS Feed
DEF CON 6
Collection of all Content from DEF CON 6: Torrent
Speeches:
Collection of all Audio from DEF CON 6: Emule collection | RSS Feed
DEF CON 7
Collection of all Content from DEF CON 7: Torrent
Speeches:
Collection of all Video from DEF CON 7: Emule collection | RSS Feed
Collection of all Audio from DEF CON 7: Emule collection | RSS Feed
DEF CON 8
Collection of all Content from DEF CON 8: Torrent
Speeches:
Collection of all Video from DEF CON 8: RSS Feed
Collection of all Audio from DEF CON 8: Emule collection | RSS Feed
DEF CON 9
Collection of all Content from DEF CON 9: Torrent
Speeches:
Collection of all Video from DEF CON 9: Emule collection | RSS Feed
Collection of all Audio from DEF CON 9: Emule collection | RSS Feed
Music:
Collection of all Music from DEF CON 9: RSS Feed
DEF CON 10
Collection of all Content from DEF CON 10: Torrent
Speeches:
Collection of all Video from DEF CON 10: Emule collection | RSS Feed
Collection of all Audio from DEF CON 10: Emule collection | RSS Feed
Music:
Collection of all Music from DEF CON 10: RSS Feed
DEF CON 11
Collection of all Content from DEF CON 11: Torrent
Speeches:
Collection of all Video from DEF CON 11: Emule collection | RSS Feed
Collection of all Audio from DEF CON 11: Emule collection | RSS Feed
Music:
Collection of all Music from DEF CON 11: RSS Feed
DEF CON 12
Collection of all Content from DEF CON 12: Torrent
Speeches:
Collection of all Video from DEF CON 12: Emule collection | RSS Feed
Collection of all Audio from DEF CON 12: Emule collection | RSS Feed
Music:
Collection of all Music from DEF CON 12: RSS Feed
DEF CON 13
Collection of all Content from DEF CON 13: Torrent
Speeches:
Collection of all Video from DEF CON 13: Emule collection | RSS Feed
Collection of all Audio from DEF CON 13: Emule collection | RSS Feed
Music:
Collection of all Music from DEF CON 13: RSS Feed
Collection of all Music Videos from DEF CON 13: RSS Feed
DEF CON 14
Collection of all Content from DEF CON 14: Torrent
Speeches:
Collection of all Video from DEF CON 14: RSS Feed
Collection of all Audio from DEF CON 14: Emule collection | RSS Feed
Music:
Collection of all Music from DEF CON 14: RSS Feed
DEF CON 15
Collection of all Content from DEF CON 15: Torrent
Speeches:
Collection of all Video from DEF CON 15: Emule collection | RSS Feed
Collection of all Audio from DEF CON 15: Emule collection | RSS Feed
DEF CON 16
Collection of all Content from DEF CON 16: Torrent
Speeches:
Collection of all Speaker & Slides Video from DEF CON 16: Emule collection | RSS Feed
Collection of all Slides Video from DEF CON 16: RSS Feed
Collection of all Audio from DEF CON 16: Emule collection | RSS Feed
DEF CON 17
Collection of all Content from DEF CON 17: Torrent
Speeches:
Collection of all Speaker & Slides Video from DEF CON 17: Emule collection | RSS Feed
Collection of all Slides Video from DEF CON 17: Emule collection | RSS Feed
Collection of all Audio from DEF CON 17: Emule collection | RSS Feed
DEF CON 18
Collection of all Content from DEF CON 18: Torrent
Speeches:
Collection of all Speaker & Slides Video from DEF CON 18: Emule collection | RSS Feed
Collection of all Slides Video from DEF CON 18: Emule collection | RSS Feed
Collection of all Audio from DEF CON 18: Emule collection | RSS Feed
Music:
Collection of all Music from DEF CON 18: RSS Feed
Other Video:
Hacker Jeopardy: Emule collection
DEF CON 19
Collection of all Content from DEF CON 19: Torrent
Speeches:
Speaker materials: RSS Feed
Collection of all Speaker & Slides Video from DEF CON 19: Emule collection | RSS Feed
Collection of all Slides Video from DEF CON 19: Emule collection | RSS Feed
Collection of all Audio from DEF CON 19: Emule collection | RSS Feed
Other Video:
10,000ยข Hacker Pyramid and Hacker Jeopardy: Emule collection
DEF CON 20
Collection of all Content from DEF CON 20: Torrent
Speeches:
Speaker materials: RSS Feed
Collection of all Speaker & Slides Video from DEF CON 20: Emule collection | RSS Feed
Collection of all Slides Video from DEF CON 20: RSS Feed
Collection of all Audio from DEF CON 20: Emule collection | RSS Feed
Other Video:
Hacker Jeopardy: Emule collection
DEF CON 21
Collection of all Content from DEF CON 21: Torrent
Speaker Materials:
Updated Speaker Materials: RSS Feed
Speeches:
Collection of all Speaker & Slides Video from DEF CON 21: RSS Feed
Collection of all Slides Video from DEF CON 21: RSS Feed
Collection of all Audio from DEF CON 21: Emule collection | RSS Feed
DEF CON 22
Collection of all Content from DEF CON 22: Torrent
Speaker Materials:
Updated Speaker Materials: RSS Feed
Speeches:
Collection of all Speaker & Slides Video from DEF CON 22: Emule collection | RSS Feed
Collection of all Slides Video from DEF CON 22: Emule collection | RSS Feed
Collection of all Speaker Video from DEF CON 22: Emule collection | RSS Feed
Collection of all Audio from DEF CON 22: Emule collection | RSS Feed
Villages:
Collection of talks from the Wifi Village at DEF CON 22: Emule collection
Contests:
Collection of Entries from the X-hour film contest at DEF CON 22: Emule collection
DEF CON 23
Collection of all Content from DEF CON 23: Torrent
Speeches:
Collection of all Speaker & Slides Video from DEF CON 23: RSS Feed
Collection of all Video from DEF CON 23: RSS Feed
Collection of all Slides Video from DEF CON 23: RSS Feed
Collection of all Villages Speaker & Slides Video from DEF CON 23: RSS Feed
Collection of all Audio from DEF CON 23: RSS Feed
DEF CON 24
Collection of all Content from DEF CON 24: Torrent
Speeches:
Collection of all Speaker & Slides Video from DEF CON 24: RSS Feed
Collection of all Audio from DEF CON 24: RSS Feed
DEF CON 25
Collection of all Content from DEF CON 25: Torrent
DEF CON China Beta
Collection of all Content from DEF CON China Beta: Torrent
DEF CON 26
Collection of all Content from DEF CON 26: Torrent
DEF CON China 1.0
Collection of all Content from DEF CON China 1.0: Torrent
DEF CON 27
Collection of all Content from DEF CON 27: Torrent
DEF CON 28 SAFE MODE
Collection of all Content from DEF CON 28 SAFE MODE: Torrent
DEF CON NYE 2020
Collection of all Content from DEF CON New Years Eve 2020: Torrent
DEF CON China Party
Collection of all Content from DEF CON China Party: Torrent
DEF CON 29
Collection of all Content from DEF CON 29: Torrent
DEF CON 30
Collection of all Content from DEF CON 30: Torrent