(Mostly) direct NicoNico rips from the official timeshift video archive. These contain no flying comments (yet).

[NicoNico] ACE 2012 - Yuriyurararara YuruYuri Broadcast Room Special Stage [01c1c7e5]
http://live.nicovideo.jp/watch/lv84359165


[NicoNico] ACE 2012 - Special Collaboration Program -1st Tikitiki ACE cup- [64b15acb]
http://live.nicovideo.jp/watch/lv84201745

* Audio was re-encoded to fix a minor problem.
* Not included: the rest of the 9 hour broadcast.

[NicoNico] ACE 2012 - Nazo no Kanojo X [d6b52600]
http://live.nicovideo.jp/watch/lv84326540


[NicoNico] ACE 2012 - Satou Tatsuo Presents -Mouretsu Pirates- & -Rinne no Lagrange- Special Stage [998eb9c9]
http://live.nicovideo.jp/watch/lv84101285


[NicoNico] ACE 2012 - Special Live Stage [2c4f225b]
http://live.nicovideo.jp/watch/lv84114073


[NicoNico] ACE 2012 - Puella Magi Madoka Magica [58682750]
http://live.nicovideo.jp/watch/lv84329450


[NicoNico] ACE 2012 - Papa no Iukoto wo Kikinasai! [c3f1a8ae]
http://live.nicovideo.jp/watch/lv84341042


[NicoNico] ACE 2012 - AnoHana Radio ACE in Nico Nico Douga Booth [f33d9879]
http://live.nicovideo.jp/watch/lv84202256

* Not included: the rest of the 9 hour broadcast.

[NicoNico] ACE 2012 - Tasogare Otome x Amnesia [60475b12]
http://live.nicovideo.jp/watch/lv84105803


* Other event broadcasts not included:
Nico Nico Shrine
Starchild Records
Da Capo III and Milky Holmes
Jinrui wa Suitai Shimashita