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

1996.0?.??	Mahou Tsukai Tai! Original Soundtrack (TYCY-5510)	Song
1996.12.11	Mahou Tsukai Tai! no Bunkasai (TYCY-5534)	Talk/Song
1997.04.21	Tobu Kyoushitsu Sono Tano Tanpen (MMCM-0001)	Talk
1997.08.27	Mahou Tsukai Tai! Koi to Mahou to Atarashii Uta (TYCY-5558)	Song
1997.11.10	Seiyuu Grand Prix Special CD 97	Talk/radio CM
1998.02.21	Pocket Love Angel Voice Memorial vol. 2 (FSCA-10032)	Talk
1998.02.25	Man'youshuu Kuro (PICA-1163)	Song
1998.04.01	Yuukyuu Gensoukyoku 2nd Album drama CD vol 1 (PCCB-309)	Talk
1998.04.29	Yuukyuu Gensoukyoku 2nd Album drama CD vol 2 (PCCB-313)	Talk
1998.12.21	Choukou Senki Kikaiou drama CD (CPCA-1018)	Talk
1998.12.23	Love One's Home -Ren'ai Kouhosei Vocal Collection- (KLCA-2008)	Song
1999.02.03	Yuukyuu Gensoukyoku ensemble drama CD 1 (PCCB-356)	Talk
1999.03.03	Yuukyuu Gensoukyoku ensemble drama CD 2 (PCCB-362)	Talk
1999.08.21	Triangle Session 99 Drama CD Stage 1 (MMCM-0009)	Song/Talk
1999.08.25	Mahou Tsukai Tai! Vocal Collection (TYCY-10023)	Song
1999.08.25	Mahou Tsukai Tai! to Sen'oku no Ai to Kyuukyoku no Uta	Song
1999.08.26	Ani Raji GPX Special CD 99	Talk
1999.11.25	Triangle Session 99 Vocal Mini Album (MMCC-0011)	Song
1999.12.23	Revive... "Portrait-2" (KICA-1228)	Talk
2000.01.21	Mugen no Ryvius Sound Edition 1 Sere 6.350 (VICL-60488)	Talk
2000.01.26	Triangle Session Volume 3 (MMCC-0014)	Talk
2000.02.17	Yuukyuu Ongakusai Vocal hen (PCCB-408)	Song
2000.03.17	Yuukyuu Ongakusai Drama hen (PCCB-409)	Talk
2000.09.20	Yuukyuu Kumikyoku All Start Project drama CD 1 (SCDC-00039)	Talk
2000.09.29	Kanon volume 1 (MACB-6001)	Talk
2000.10.21	Escaflowne Sound Drama Prologue 1 Earth (VICL-60636)	Talk
2001.01.24	Geo Breeders 2 File-XX Original Soundtrack (VICL-60580)	Talk
2001.08.22	Missing Blue drama CD (SCDC-120)	Talk
2001.10.03	Chance Triangle Session Vocal Album (AVCA-14227)	Song
2002.01.23	Seiyuu Best Talk Collection (SCDC-001544-001545)	Talk
2005.01.26	To Heart -Remember My Memories- vol 1 (FCCM-55)	Talk