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