Hiro has released the following solo CDs.

1998 06.20	Prism (COCC-15154)	Song
1998 11.21	Exit (COCC-15347)	Song

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

1995 03.00	Rurouni Kenshin CD Book 2 (SCD-117)	Talk
1995 03.17	Seiyuu Daisuki 2 (MRCA-20058)	Talk
1995 03.23	Lodoss Tou Senki Kaze to Honoo no Majin 3 (KCB-0005)	Talk
1995 10.25	Popful Mail Paradise 5 (KICA-1169)	Talk {Tat}
1995 12.16	Madara -Ao Gilgamesh Saga Vol. 1 (AFCP-2012)	Talk
1995 12.16	Seiyuu Daisuki 3 (MRCA-20080)	Talk
1996 02.05	Seiyuu Grand Prix CD vol 1 (AYCM-502)	Talk
1996 02.21	Ryuu Night CD Cinema 3 (VICL-8168)	Talk
1996 07.24	Popful Mail The Next Generation (KICA-1184)	Talk
1996 12.21	Neon Genesis Evangelion Addition (KICA-333)	Talk
1997 01.21	Bloody Bride Imadoki no Vampire Soundtrack (NACL-1270)	Talk
1997 03.05	Popful Mail Next Generation II (KICA-1195)	Talk
1997 06.21	Cyber Formula SAGA Inspire vol 1 (AYCM-571)	Song
1997 06.21	Weiss Kreuz Dramatic Image Album I	Talk/Song
1997 08.21	Weiss Kreuz Dramatic Image Album II	Talk/Song
1997 08.27	Mahou Gakuen Lunar! (TYCY-5542)	Talk
1997 10.21	Weiss kreuz dramatic collection 1 (MMCM-1003)	Talk
1997 11.10	Seiyuu Grand Prix Special CD 97	Talk
1997 11.21	Mega Blade (KICA-1202)	Talk
1997 11.21	Weiss kreuz radio selection (MMCM-1004)	Talk
1997 12.16	Weiss kreuz vocal collection I Gluhen (MMCM-1005)	Song
1997 12.20	Yume de Aetara 4 (COCC-14744)	Talk
1998 01.21	Yume de Aetara 5 (COCC-14775)	Talk
1998 02.01	Angelique Kiss Kiss Kiss (KECH-1124-1125)	Song
1998 03.21	Weiss Tanz Gluhen (MMCM-1006)	Song
1998 04.03	Shoujo Kakumei Utena Engage Toi Mes Cont (KICA-396)	Talk
1998 04.17	Real Bout Garou Densetsu 2 The Newcomers (PCCB-310)	Talk
1998 05.05	Weiss kreuz Radio Selection II (MMCM-9001)	Talk
1998 06.21	Weiss Dramatic Collection II (MMCM-1008)	Talk
1998 07.21	Schlag des Herzens [Weiss] (MMCM-1009)	Song
1998 10.21	Weiss keuz Dramatic Collection III (MMCM-1011)	Talk
1998 11.06	High School Aura Buster 1st Vision (KICA-420)	Talk
1998 11.21	Top of the World (MECH-28101)	Song
1998 12.16	Das Ewige Dasein [Weiss] (MMCM-1012)	Song
1999 01.06	High School Aura Buster 2nd Vision (KICA-436)	Talk
1999 02.21	Weiss Radio Selection III (MMCM-9003)	Talk
1999 04.21	Weiss kreuz Dramatic Collection IV (MMCM-1010)	Talk
1999 06.21	Weiss kreuz Dramatic Precious 2nd Stage (MMCM-1015)	Talk/Song
1999 08.21	Weiss kreuz Dramatic Precious 3rd Stage (MMCM-1016)	Talk/Song
1999 11.24	Barbarian Quartetto Volume 3 (MACA-2014)	Talk
2000 02.00	High School Aura Buster Himitsu no Tekken! Special CD (8SSX122)	Talk
2000 03.23	West End (MMCC-3701)	Talk
2000 04.26	Houshin Engi Gaiden Daini Shou (KICA-502)	Song {duet}
2000 06.26	Weiss Keuz Dramatic Image Album III Schwarz Ain (MMCC-1019)	Talk
2000 07.26	Weiss Keuz Dramatic Image Album IV Schwarz Ain (MMCC-1020)	Talk
2000 11.29	Weiss kreuz Best Album Die Bleibende Erinnerung (MMCC-1022)	Song
2001 06.20	Close To drama CD (SCDC-090)	Talk
2001 06.27	Weiss Kreuz Wish A Dream Collection I (MMCC-1023)	Talk
2001 08.22	Weiss kreuz Wish A Dream Collection A Four leaf Clover (MMCC-1024)	Song/Talk
2001 09.26	Weiss kreuz Radio Selection IV (MMCC-1025)	Talk
2002 01.23	Seiyuu Best Talk Collection (SCDC-00153)	Talk

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

1997 02.05	Angelique Shugosei Collection 2 -Marcel (KEDH-1005)	Song/Talk
1998 01.21	Beautiful Alone [Weiss] (MMDM-1001)	Song
1998 02.21	Hiro -white- (COCC-14881)	Song
1998 03.21	Hiro -crimson- (COCC-14881)	Song/Talk
1998 05.21	Velvet Underworld [Weiss] (MMDM-1002)	Song
1998 08.05	Piece of Heaven [Weiss] (MMDM-1003)	Song
1998 08.21	It's Too Late [Weiss] (MMDM-1004)	Song
1998.??.??	Hiro -sepia- (COCC-14991)	Song/Talk
1999 09.21	No Reason/Mellow Candle [Weiss] (MMDM-1006)	Song
2002 03.21	Gluhen [Weiss] (MMCC-1029)	Song
2002 03.21	Stone Roses [Weiss] (MMCC-1030)	Song