Duraradi!!

'Durarara!! Radio: Duraradi for Short!!' (デュラララ!!ラジオ 略して デュララジ!!, Durarara!! Rajio Ryakushite Duraraji!!), is a collection of radio shorts by voice actors from the Durarara!! anime. The show is hosted by Toshiyuki Toyonaga and Kana Hanazawa, voice actors for Mikado Ryuugamine and Anri Sonohara. It aired from February 26, 2010, to March 25, 2011, and was collected into four albums. Each album features a guest appearance by another member of the cast.

Volume 1
Durarara!! DJCD01 (「デュラララ!!」DJCD『デュララジ掲示板 観察日記』, Durarara!! DJCD Duraraji Keijiban Kansatsu Nikki) is the first released Durarara!! radio CD, with vocals by Toshiyuki Toyonaga and Kana Hanazawa, voice actors for Mikado Ryuugamine and Anri Sonohara, with a guest appearance by Masaomi Kida, voiced by Mamoru Miyano. It was released on April 21, 2010.

The theme of the CD is "Enjoying Ikebukuro!" and the shorts feature scenes from a tea party, night life, and tours around Ikebukuro by the three friends, as well as a voice actors' roundtable discussion.

Track List
(Kansatsu Nikki Jo) (Kansatsusha Rannyuu! -Miyano-san ga Nyuushitsu Saremashita-) (Chat Room -Teiin desu-) (Sawaruna!! Kiken!! -Sawaranaide Kudasai-) (Kida Masaomi no Nakayoshido Check! -Bousou Shimashita-) (Kansatsu Nikki Ketsu -Henkou Shimashita-)
 * 1) P1 観察日記 序
 * 1) P2 観察者乱入!-宮野サンが入室されました-
 * 1) P3 チャットルーム-定員です-
 * 1) P4 触るな!!危険!!-触らないで下さい-
 * 1) P5 P5 紀田正臣の仲良し度チェック!-暴走しました-
 * 1) P6 観察日記 結-変更しました-

Volume 2
Durarara!! DJCD02 (「デュラララ!!」DJCD『デュララジ掲示板 観察日記』 2枚目, Durarara!! DJCD Duraraji Keijiban Kansatsu Nikki 2 Maime) is the second Durarara!! radio CD, with vocals by Toshiyuki Toyonaga and Kana Hanazawa, voice actors for Mikado Ryuugamine and Anri Sonohara, with a guest appearance by Celty Sturluson, voiced by Miyuki Sawashiro. It was released on June 23, 2010.

The theme of the second radio CD is "Holic Side!!" It dives further into the unusual daily life of Mikado and his friends and includes a voice actors' roundtable discussion.

Track List
(Kansatsu Nikki Jo) (Kansatsusha Toujou! -Shiroron ga Nyuushitsu Saremashita-) (Chat Room -Warawaseru Kara!-) (Sawaruna!! Kiken!! -Kore, Yabe eyo?-) (Ganbara Naito Kubi ni Nacchau Yo? -Yappari Bousou Shimashita-) (Kansatsu Nikki Ketsu -Yappari Henkou Shimashita-)
 * 1) P1 観察日記 序
 * 1) P2 観察者登場!-シロロンが入室されました-
 * 1) P3 チャットルーム-笑わせるから!-
 * 1) P4 触るな!!危険!!-これ、やべぇよ?-
 * 1) P5 頑張らないとクビになっちゃうよ?-やっぱり暴走しました-
 * 1) P6 観察日記 結-やっぱり変更しました-

Volume 3
Durarara!! DJCD03 (「デュラララ!!」DJCD『デュララジ掲示板 観察日記』 3枚目, Durarara!! DJCD Duraraji Keijiban Kansatsu Nikki 3 Maime) is the third Durarara!! radio CD, with vocals by Toshiyuki Toyonaga and Kana Hanazawa, voice actors for Mikado Ryuugamine and Anri Sonohara, and a guest appearance by Izaya Orihara, voiced by Hiroshi Kamiya. It was released on August 25, 2010.

The theme of the third radio CD is "Dark Side!!" The shorts explore the dangerous side of life in Ikebukuro and how the characters manage. It also includes a roundtable discussion by the voice actors.

Track List
(Kansatsu Nikki Jo) (Kansatsusha Nyuushitsu -Hiro-chan ga Nyuushitsu Shimashita-) (Chat Room -Iroiro Okoraremashita-) (Sawaruna!! Kiken!! -Shinkiroku ga Demashita-) (Hana-chan!! LOVE!! Game!! -Douyou Shimashita-) (Kansatsu Nikki Ketsu -Yosou Doori, Henkou Shimashita...-)
 * 1) P1 観察日記 序
 * 1) P2 観察者入室　－ヒロちゃんが入室しました－
 * 1) P3 チャットルーム　－色々怒られました－
 * 1) P4 触るな！！　危険！！　－新記録が出ました－
 * 1) P5 ハナちゃん！！ＬＯＶＥ！！ゲーム！！　－動揺しました－
 * 1) P6 観察日記　結　－予想通り、変更しました...－

Volume 4
Durarara!! DJCD04 (「デュラララ!!」DJCD『デュララジ掲示板 観察日記』 4枚目, Durarara!! DJCD Duraraji Keijiban Kansatsu Nikki 4 Maime) is the fourth Durarara!! radio CD, with vocals by Toshiyuki Toyonaga and Kana Hanazawa, voice actors for Mikado Ryuugamine and Anri Sonohara, with a guest appearance by Shizuo Heiwajima, voiced by Daisuke Ono. It was released on October 26, 2011.

The theme of the fourth radio CD is "Danger!! Do not touch!" It explores the humor and dangers of life in Ikebukuro and includes a voice actors' roundtable discussion.

Track List
(Kansatsu Nikki Jo) (Kansatsusha Bousou -Onii-chan ga Nyuushitsu Shimashita-) (Chat Room -Kokucchaimashita-) (Sawaruna!! Kiken!! -Kurozawa-san ga Kimashita-) (Docchi ga Hana-chan to Nakayoshi de Show!! -Yume wo Misugimashita (Naki)-) (Kansatsu Nikki Ketsu -Yosougai no Ketsumatsu ni Narimashita-)
 * 1) P1 観察日記 序
 * 1) P2 観察者暴走-お兄ちゃんが入室しました-
 * 1) P3 チャットルーム-告っちゃいました-
 * 1) P4 触るな!! 危険!!-クロザワさんが来ました!-
 * 1) P5 どっちがハナちゃんと仲良しでShow!!-夢を見過ぎました(泣)-
 * 1) P6 観察日記 結-予想外の結末になりました-