Ryoutarou has released the following solo CDs.

1996 12.21	Day After Day (NACL-1263)	Song
2000 05.24	Time Capsule 3 (MECH-28107)	Song/Talk

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

1992 06.25	Cyber Formula Rei View 1 Maku (PSCX-1048)	Song
1994 08.21	Marmalade Boy Vol. 2	Talk {14}
1994 09.21	Marmalade Boy Vol. 3 Marmalade Voice	Song {3}
1994 10.01	Seirei Tsukai Mega D Style (SRCL-3009)	Talk
1994 11.23	94 Seiyuu Song Festival	Song
1995 03.08	Rockman Kiki Ippatsu Drama	Talk
1995 03.17	Seiyuu Daisuki 2 (MRCA-20058)	Talk
1995 04.29	Eiyuu Densetsu III -Shiroki Majo- Kenketsu Hen (KICA-1159)	Talk
1995 06.21	Scandalous Actor Performance (AFCP-2002)	Talk
1995 07.21	Jinkousehouseiki Izanagi (AFCP-2006)	Talk
1995 09.21	Jinnai no Sekai (PICA-1074)	Song/Talk
1995 09.21	Sotsugyou Crossworld "Sotsugyou M" (COCC-12878)	Talk
1995 10.25	Popful Mail Paradise 5 (KICA-1169)	Talk {Blacky}
1995 11.05	Marmalade Boy Vol. 8	Song
1995 12.13	Cutey Tenshi Chougouka Yume no Saiten (TYCY-5461)	Talk
1995 12.21	El Hazard TV volume 1 (PICA-1082)	Talk
1995 12.21	Tokyo Denki Kirakira Gasshoudan The Heros (TDCD-1123)	Song
1996 01.20	Girl (COCC-18105)	Song
1996 02.21	Ryuu Night CD Cinema 3 (VICL-8168)	Talk
1996 03.05	I Love You (AYCM-507)	Talk
1996 03.23	Gundam W Operation 4 (KICA-295)	Song
1996 03.23	Mobile Suit Gundam Wing Operation 4 (KICA-295)	Song
1996 07.24	Radio no Sekai El Hazard CD Special (PICA-1103)	Talk
1996 09.21	Ja Ja Uma Quartet Operation 1 (BVCH-1407)	Talk
1996 10.23	Souryuuden I Chounouryoku 4 Kyoudai (KICA-7011-7012)	Talk
1996 12.21	Oretachi ni Makasero! (COCC-13982)	Talk
1997 01.10	E.M.U. Equal (COCC-14020)	Song
1997 01.21	Oretachi ni Makasero! volume 2 (COCC-14019)	Talk
1997 03.20	E.M.U. Equal Live Tour (COCC-14053-14054)	Song
1997 04.19	Oretachi ni Makasero! volume 3 (COCC-14159)	Talk
1997 04.23	Kidou Senkan Nadesico Asu no Kanchou ha Kimi da! (KICA-345)	Song
1997 06.21	Cyber Formula SAGA Inspire vol 1 (AYCM-571)	Song
1997 08.26	Elfin Paradise (BVCH-742)	Talk
1997 09.01	Seikimatsu Darling III (MMCM-3002)	Talk
1997 10.21	Fortune Quest drama collection 2 (AYCM-581)	Talk
1997 10.21	Oretachi ni Makasero! volume 4 (COCC-14581)	Talk
1997 10.21	Weiss kreuz dramatic collection 1 (MMCM-1003)	Talk
1997 10.22	Calm Breaker (KICA-375-6)	Talk
1997 10.25	Kimi Dake wo Mitsumeteru (AMCM-4342)	Talk
1997 11.06	Android Anna Maico-2010 3 (KICA-7811)	Talk
1997 11.21	Mega Blade (KICA-1202)	Talk
1997 12.20	Hyper Anna (COCC-14738)	Talk
1997 12.21	Megami Ibunroku Persona (KECH-1121)	Talk
1998 01.21	Sotsugyou M Drama Collection (COCC-14774)	Talk
1998 02.05	Guy Brave radio drama CD vol 1 (AZCV-2001)	Talk
1998 03.05	Guy Brave radio drama CD vol 2 (AZCV-2002)	Talk
1998 03.05	Kizuna (MMCM-3004)	Talk
1998 04.03	Burn Up Excess Plus file 4 (KICA-7829)	Talk
1998 04.03	Hanasaki Komachi Girls (KICA-399)	Talk
1998 04.05	Guy Brave radio drama CD vol 3 (AZCV-2003)	Talk
1998 04.21	Tokyo Crazy Paradise (MMCM-4002)	Talk
1998 04.29	Yuukyuu Gensoukyoku 2nd Album drama CD vol 2 (PCCB-313)	Talk
1998 08.21	E.M.U. the Remix (COCX-30008)	Song
1998 10.01	E.M.U. the Best (COCX-30061)	Song
1998 11.06	High School Aura Buster 1st Vision (KICA-420)	Talk
1998 12.06	Gekka Kajin: Lumen Lunae (WIN-0006)	Talk
1998 12.19	Sotsugyou M Song Collection (COCX-30225)	Song
1999 01.06	High School Aura Buster 2nd Vision (KICA-436)	Talk
1999 02.03	Yuukyuu Gensoukyoku ensemble drama CD 1 (PCCB-356)	Talk
1999 03.03	Yuukyuu Gensoukyoku ensemble drama CD 2 (PCCB-362)	Talk
1999 08.25	Houshin Engi Level-I (KECH-1152)	Talk
1999 09.25	Barbarian Quartetto Volume 1 (MACA-2012)	Talk
1999 10.20	Houshin Engi Level-II (KECH-1153)	Talk
1999 10.27	Barbarian Quartetto Volume 2 (MACA-2013)	Talk
1999 11.17	Yuukyuu Gensoukyoku Collection 4 Colors (PCCB-400)	Song/Talk
1999 11.24	Barbarian Quartetto Volume 3 (MACA-2014)	Talk
1999 12.10	Houshin Engi Level-III (KECH-1154)	Talk
2000 02.00	High School Aura Buster Himitsu no Tekken! Special CD (8SSX122)	Talk
2000 02.25	Nadesico Oshare Club (KICA-490)	Song
2000 03.17	Yuukyuu Ongakusai Drama hen (PCCB-409)	Talk
2000 03.23	West End Volume 2 (MMCC-3705)	Talk
2000 04.21	E.M.U. Memorial Box (COCX-30832--COCX-30836)	Song
2000 07.28	DiGi Charat CD Drama so nyo 4 (GCFC-008)	Talk
2000 09.20	Yuukyuu Kumikyoku All Start Project drama CD 1 (SCDC-00039)	Talk
2000 09.22	Tokyo Jusshouden drama CD Maou no Shinzou zenpen (PICL-7018)	Talk
2000 10.12	Minna de Tsukuru Yuukyuu CD! (SCDC-00033)	Talk
2000 10.18	Yuukyuu Final Concert (SCDC-00048)	Skit
2000 10.25	Clamp Gakuen Kaiki Genshou Kenkyuukai Jiken File 1 (MMCC-4011)	Talk
2000 10.25	Tokyo Jusshouden drama CD Maou no Shinzou kouhen (PICL-7019)	Talk
2000 11.22	Clamp Gakuen Kaiki Genshou Kenkyuukai Jiken File 2 (MMCC-4012)	Talk
2000 12.02	Welcome to X'mas (GCFC-013)	Song
2000 12.20	Clamp Gakuen Kaiki Genshou Kenkyuukai Strike Sparks ()	Song {track 1, 3}
2001 04.25	Super Robot Taisen alpha Gaiden (LACA-5032)	Talk
2003 08.21	D.N.Angel CD drama D.X.Angel Cute (VICL-61142)	Talk
2003 10.01	D.N.Angel CD drama 2 (VICL-61144)	Talk
2003 10.22	D.N.Angel Vocal Collection (VICL-61145)	Song
2004 07.23	Beast of East (MMCC-4057)	Talk
2005 05.25	Fruits Basket (MMCC-7037)	Talk
2005 09.22	Mamotte Shugogetten! Retrouvailles Drama CD 3 (FCCC-39)	Talk
2005 10.21	Air Drama CD vol 5 Kirishima Kano Dream Kouhen (FCCP-13)	Talk
2006 03.10	Tales of Destiny Chijou-hen (FCCT-9003)	Talk
2007 04.25	Drama CD CLANNAD vol 1 Furukawa Nagisa (FCCP-0024)	Talk

Ryoutarou appears (sings/talks) in the following CD singles.

1995 01.21	Elles Cinq II: Tiny Heart	Talk
1995 01.21	Elles Cinq III: Love Drug	Talk
1995 01.21	Elles Cinq IV: Nostalgic Lover	Talk
1995 01.21	Elles Cinq V: Tears no Kataomoi	Talk
1997 07.19	Mountain (COCC-14455)	Song
1997 11.01	Sotsugyou M voice message Takagi Shimon (CODC-1353)	talk
1998 01.21	Forever Love [ZMAP] (KIDA-160)	Song
1998 12.01	Heart ha Koukiatsu [E.M.U.] (CODC-1673)	Song
1999.01.??	Yuukyuu Gensoukyoku character series 8 (PCDB-016)	Song
1999 05.01	Sotsugyou M character CD special 1 ()	Song
1999 05.01	Sotsugyou M character CD special 3 ()	Song