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

2005 10.05	Hatsunejima Housoukyoku S.S. Vol.1 (LACA-5436)	Talk
2006 02.22	Hatsunejima Housoukyoku S.S. Vol.2 (LACA-5484)	Talk
2006 05.10	D.C.S.S. -Da Capo Second Series- Vocal Album vol 2 (LACA-5504)	Song
2006 05.24	Hatsunejima Housoukyoku S.S. Vol.3 (LACA-5516)	Talk
2007 12.07	Night Wizard The Animation Characters vol 1 (VGCD-0125)	Song/Talk
2007 12.07	Night Wizard The Animation Characters vol 2 (VGCD-0126)	Talk
2007 12.07	Night Wizard The Animation Characters vol 3 (VGCD-0127)	Talk
2007 12.21	Night Wizard The Animation Characters vol 4 (VGCD-0128)	Talk
2007 12.21	Night Wizard The Animation Characters vol 5 (VGCD-0129)	Talk
2008 04.23	Night Wizard The Best Vocal Collection (VGCD-0137)	Song
2008 11.26	Macademi Kazoe Uta Sono 1 (FVCG-1071)	Talk
2008 11.26	Macademi Kazoe Uta Sono 2 (FVCG-1072)	Talk
2008 11.26	Macademi Kazoe Uta Sono 3 (FVCG-1073)	Talk
2008 12.03	Macademi Kazoe Uta Sono 4 (FVCG-1074)	Talk
2008 12.03	Macademi Kazoe Uta Sono 5 (FVCG-1075)	Song/Talk
2009 03.25	Kanokon Nicebody Perfect Vocal Collection (FVCG-1087)	Song
2011 05.25	L@ve Once Mermaid's Tears Character Song Collection (AVCA-29969)	Song
2011 08.24	Chaos; Head Vocal Collection (FVCG-1172)	Song
2012 11.30	D.C.III Drama CD Collection vol.3 (CIRCUS-0320)	Talk
2012 12.28	D.C.III Drama CD Collection vol.4 (CIRCUS-0321)	Talk
2013 04.24	D.C.III -Da Capo III- Original Sound Tracks and Image Songs (LACA-9285)	Song