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

1996 05.21	Kuro Kami no Captured drama CD vol 1 (AYCM-512)	Talk
1997 04.21	Tobu Kyoushitsu Sono Tano Tanpen (MMCM-0001)	Talk
1998 06.27	Omoide no School Days 1 (MACM-1010)	Talk
1999 01.20	Voice Theater Series 2 Urban Blue (TYCY-10007)	Talk
1999 12.23	Tokimeki Memorial 2 Vocal Tracks (KMCA-39)	Song
2001 03.21	Tokimeki Memorial 2 Vocal Tracks 3 (KMCA-88)	Song
2001 08.29	Tokimeki Memorial 2 Vocal Tracks 4 (KMCA-115)	Song
2002 05.22	Tokimeki Memorial 2 Vocal Tracks 5 (KMCA-157)	Song