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

2010.08.13	Bokura no Live Kimi to no Life (LZM-2027)	Song/Talk
2010.12.22	Snow Halation (LACM-4774)	Song/Talk
2011.08.24	Natsu Iro Egao de 1 2 Jump! (LACM-4845)	Song/Talk
2012.10.17	Love Live Radio Niko Rin Pana Theme Song DJCD (LACA-15244)	Song/Talk
2013.01.09	Muse Best Album (LACA-39262)	Song
2013.04.10	Notes of School Idol Days (LACA-9281)	Song
2015.08.19	Venus Project -Climax- BD vol.1 (TKXA-1066)	Song
2016.06.05	Gekkan Voice Venus Project Vol.2	Song
2018.11.23	Kaijuu Girls Best Songs Character Song Best (BRCG-0064)	Song