Here's another exclusive Japanese CD-i title: This professional CD-i was used in Japanese liquor stores in a retail kiosk display system (Philips CD-i の日本酒のすべて)

 

Next to the Manna Space professional Japanese CD-i titles we have not seen any other professional Japanese CD-i title before. CD-i member Nyamosu_Retro (猫爪にゃもす@肉体錬成中) shared a unique CD-i with us which is called "日本酒のすべて" (Roughly translated: "All about Sake") - Nyamosu describes it as Kiwamono software released by NHK, intended for use in a retail kiosk unit in Japanese liquor stores. As a professional CD-i, it is already more rare compared to a regular Japanese CD-i, which in itself is very hard to come by.