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

1993 03.25	Tenchi Muyou! Ryououki Ongakuhen Sono Ni (PICA-1011)	Song {18}
1993 07.24	Tenchi Muyou! Ryououki Tenchikaibyaku Jukuu no Michiyuki (PICA-1018)	Song {11}
1993 11.25	Tenchi Muyou! Ryououki no Christmas (PICA-1024)	Song
1994 04.27	Tenchi Muyou! Ryououki Taiyoukei Nanatsu no Hitou (PICA-1034)	Song {5, 8}
1994 11.25	Tenchi Muyou! Ryououki Best Album (PICA-1049)	Song {9}
1995 01.25	Tenchi Muyou! Ryououki Sasami no Saint Valentine (PICA-1054)	Song {5, 11}
1995 03.22	Shinpi no Sekai El Hazard Ongakuhen (PICA-1053)	Song
1995 03.22	Tenchi Muyou! Ryououki Hihokan: Best Album Part 2 (PICA-106002)	Song
1995 03.22	Tenchi Muyou! Ryououki Hihokan: Studio Session (PICA-106001)	Song
1995 09.21	Jinnai no Sekai (PICA-1074)	Talk
1995 12.21	El Hazard TV volume 1 (PICA-1082)	Talk/Song
1996 02.21	Haneda Mitaka no Aozora Douchuu (BVCH-1515)	Talk
1996 05.10	El Hazard TV volume 2 (PICA-1100)	Talk/Song
1996 07.24	Radio no Sekai El Hazard CD Special (PICA-1103)	Talk
1996 08.21	Tenchi Muyou! Live Tour in '96 (PICA-1107)	Song
1996 11.27	Pretty Sami TV Original Soundtrack 1 (PICA-1117)	Song
1996 12.21	Tenchi Muyou! Heartful Songs (PICA-1122)	Song
1997 01.22	Taiho Shichauzo Original Soundtrack I	Song
1997 07.19	Beast Master 3 (COCC-14367)	Talk
1998 02.25	Man'youshuu Kuro (PICA-1163)	Song
2001 05.30	Sakura Taisen 3 Vocal Collection (AVCA-14155)	Song
2002 04.10	Panyo Panyo DiGi Charat Sound Track (AVCA-14334)	Song
2002 06.19	Sakura Taisen Uta no Album Teito-hen Paris-hen (AVCA-14394)	Song
2005 08.24	Mirumo de Pon! Charming drama CD vol 1 (GFCA-23)	Talk
2005 09.21	Mirumo de Pon! Charming drama CD vol 2 (GFCA-24)	Talk
2005 10.19	Mirumo de Pon! Charming drama CD vol 3 (GFCA-25)	Talk
2005 11.02	Mirumo de Pon! Sayonara Mirumo" Very Best Songs (GFCA-26)	Song
2011 02.23	Pachislot Sakura Taisen 3 Original Soundtrack (WWCE-31244)	Song