Hiromi appears (sings/talks) in the following CD singles.

1997.10.??	Sentimental Graffiti CD Collection vol 1 Yamamoto Rurika (BPPZ1001)	Song/Talk
1997.10.end	Sentimental Graffiti character collection drama CD Special	Talk
1997.10.end	Sentimental Graffiti character collection drama CD Yamamoto Rurika	Talk
1998 12.31	Pure Blue (APDM-9007R)	Song/Talk
2007 07.25	Aimai Net Darling (LACM-4391)	Song
2007 08.29	Misoji Misaki (LACM-4397)	Song
2008 10.08	Ai wo Torimodose! (LACM-4534)	Song
2009 09.18	Amagami Character Song Vol. 3 (TRCD-10092)	Song/Talk
2010 05.26	Kiddy GiRL-AND Character Song Vol.07 (LACM-4706)	Song
2011 06.22	Shinonome Kenkyuujo no Kyou mo Heiwa desu (LACM-4815)	Song
2011 07.06	Nichijou Character Song Sono 2 (LACM-4822)	Song