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

2015 08.19	Venus Project -Climax- BD vol.1 (TKXA-1066)	Song
2016 04.02	Gekkan Voice Venus Project Vol.0	Song/Talk
2016 05.01	Gekkan Voice Venus Project Vol.1	Talk
2016 06.05	Gekkan Voice Venus Project Vol.2	Song/Talk
2016 06.30	Shinken!! Character Image Song Shuu Vol.1 (P_006)	Song
2016 08.20	Gekkan Voice Venus Project Vol.3	Song/Talk
2016 08.20	Gekkan Voice Venus Project Vol.4	Song/Talk
2016 09.15	Mausu Theater 002 (MAPR-0004)	Song
2016 09.24	Gekkan Voice Venus Project Vol.5	Talk
2016 10.23	Venus Project Shinshou (DGDC-001)	Talk
2017 09.26	Blue Reflection -Ouverture-	Talk
2017 12.13	Konohanatei no Shiki (LACM-14697)	Song
2018 06.27	Bang Dream! Girls Band Party! Cover Collection Vol.1 (BRMM-10123)	Song
2018 12.29	Mausu Theater 029 ()	Song
2019 03.16	Bang Dream! Girls Band Party! Cover Collection Vol.2 (BGMM-10177)	Song
2019 04.17	Tenka Hyakken -Zan- Character Song Album (PCCG-1772)	Song
2019 09.25	Bang Dream! Film Live Gekichuuka Collection (BRMM-10210)	Song
2019 12.18	Bang Dream! Girls Band Party! Cover Collection Vol.3 (BGMM-10209)	Song
2020 05.27	Bang Dream! Girls Band Party! Cover Collection Vol.4 (BGMM-10265)	Song
2021 02.24	Bang Dream! Girls Band Party! Cover Collection Vol.5 (BGMM-10345)	Song {Pastel Palettes}
2021 05.19	Title Idol (BRMM-10350)	Song
2021 08.25	Bang Dream Film Live 2nd Stage Special Songs (BRMM-10410)	Song
2021 11.10	Bang Dream! Girls Band Party! Cover Collection Vol.6 (BGMM-10468)	Song {Pastel Palettes}