Some doujin CDs:
http://www.suruga-ya.jp/database/186110511001.html
銀河の三人 ORIGINAL SOUNDTRACKS
Soundtrack to The Earth Fighter Rayieza / Ginga no Sannin, music by Yukihiro Takahashi but no sign who published this release and when.
CRIMSON II ORIGINAL SOUNDTRACK -PC8801MK25R SOUNDBOARD-II VERSION-
http://www.suruga-ya.jp/database/186110512001.html
Old RPG by XTAL SOFT from 1989, also no sign of a publisher for this CD.
http://www.suruga-ya.jp/database/186104878001.html
REAL DOLL 恋愛シミレーションイメージサウンドトラック
Could be anything, the game's name could be Renai Simulation or REAL DOLL, due to lack of publisher and there are plenty of games with "Renai Simulation" in the title.