Youko appears (sings/talks) in the following miscellaneous CDs.

2009.07.22	Houkago Tea Time (PCCG-00962)	Song
2009.09.02	K-On! Official Band Yarou yo! (PCCG-00963)	Song
2009.10.07	Yoku Wakaru Gendai Mahou Original Soundtrack (LHCA-5108)	Song
2009.10.23	Drama CD Haiyore! Nyaruko-san (HBDC-072)	Talk
2009.12.23	Nogizaka Haruka no Himitsu Purezza A LA CARTE 2 (GNCA-1234)	Talk
2010.02.24	Koi no Qwaser Magic (LACA-15014)	Song
2010.02.24	Radion! Special! Vol.1 (PCCG-987)	Song/Talk
2010.02.24	Rajion! Special Vol.1 (PCCG-987)	Talk
2010.03.17	Radion! Special! Vol.2 (PCCG-988)	Song/Talk
2010.03.17	Rajion! Special Vol.2 (PCCG-988)	Talk
2010.03.24	Seikon no Qwaser Radio Tomo Hana Hara Show Time! (KACA-15018)	Talk
2010.04.21	Chu Music x Bra DRama (KICA-3111 KICA-3112)	Song/Talk
2010.05.26	Ichiban Ushiro ni aru Kimochi (LASA-5046)	Song/Talk
2010.06.25	Drama CD Haiyore! Nyaruko-san EX (HBDC-080)	Talk
2010.10.05	K-On!! Original Sound Track Vol 2 (PCCG-01064)	Song
2010.10.27	Houkago Tea Time II (PCCG-01070)	Song/Talk
2010.12.24	Drama CD Haiyore! Nyaruko-san DX (HBDC-085)	Talk
2011.02.09	Kore ha Zombie Desuka? Drama CD (VTCL-60237)	Talk
2011.03.23	Infinite Stratos Original Soundtrack (LACA-15107)	Song
2011.04.20	Meccha Sounyuuka and Meccha Soundtrack Bangaihen (VTCL-60246)	Song
2011.05.25	Drama CD Haiyore! Nyaruko-san GX (HBDC-092)	Talk
2011.05.25	L@ve Once Mermaid's Tears Character Song Collection (AVCA-29969)	Song
2011.07.06	Tokei Jikake no Ongaskushuu (COCX-36820)	Song
2011.07.27	Rio Super Best! (KECH-1582)	Song
2011.08.24	Dog Days Drama Box Vol.1 (SVXC-7788)	Talk
2011.10.05	Pure Elements (WB-1000232047)	Song
2011.10.26	Ro-Kyu-Bu! Interval 1 (WB-1000242745)	Song/Talk
2011.11.16	K-On Live Event -Come With Me!- Live CD (PCCG-1079)	Song
2011.11.16	K-On Live Event -Let's Go- Live CD (PCCG-1077)	Song
2011.11.30	Ro-Kyu-Bu! Interval 2 (WB-1000242744)	Talk
2011.12.21	Ro-Kyu-Bu! Interval 3 (WB-1000242743)	Talk
2012.03.14	Infinite Stratos Vocal Collection Album (LACA-15195)	Song
2012.07.04	Koreha Zombie desuka? of the Dead Drama CD (VTCL-60312)	Talk
2012.07.04	Koreha Zombie desuka? of the Dead Mecha Festibo- (VTCL-60310 VTCL-60311)	Song
2013.04.14	Infinite Stratos Original Drama Series Vol.1 (LALA-5001)	Song/Talk
2013.07.31	Hayate no Gotoku! Cuties Ending and Heroine Soundtrack 2 (GNCA-1382)	Song
2013.08.21	Rou Kyuu Bu Character Song Best Scorebook (WB-1000404883)	Song
2013.09.04	Dear Friends (WB-1000412329)	Song
2014.02.26	Infinite Stratos Original Drama Series Vol.7 (LALA-5009)	Talk
2014.12.17	Ore Twintail ni Narimasu Character Song Shiro/Kuro (PCCG-70238)	Song/Talk
2016.06.08	Infinite Stratos Complete Album (LALA-5011)	Song
2016.12.21	GirlFriend Character Song Series Vol.01 (PCCG-1575)	Song
2017.02.15	GirlFriend Character Song Series Vol.02 (PCCG-1592)	Song
2017.03.15	GirlFriend Character Song Series Vol.03 (PCCG-1593)	Song
2018.06.27	Bang Dream! Girls Band Party! Cover Collection Vol.1 (BRMM-10123)	Song
2019.03.16	Bang Dream! Girls Band Party! Cover Collection Vol.2 (BGMM-10177)	Song
2019.09.25	Bang Dream! Film Live Gekichuuka Collection (BRMM-10210)	Song
2019.12.18	Bang Dream! Girls Band Party! Cover Collection Vol.3 (BGMM-10209)	Song
2020.02.12	Princess Connect Re:Dive Character Song Album Vol.1 (COZX-1623)	Song
2020.05.27	Bang Dream! Girls Band Party! Cover Collection Vol.4 (BGMM-10265)	Song
2021.02.24	Bang Dream! Girls Band Party! Cover Collection Vol.5 (BGMM-10345)	Song {After Glow}
2021.08.25	Bang Dream Film Live 2nd Stage Special Songs (BRMM-10410)	Song
2021.11.10	Bang Dream! Girls Band Party! Cover Collection Vol.6 (BGMM-10468)	Song {After Glow}
2022.02.16	Princess Connect Re:Dive Character Song Album Vol.3 (COCX-41718)	Song