Bishoujo Senshi Sailor Moon Memorial Music Box
Front of Memorial Music Box
Back of Memorial Music Box
Released Feb 21, 1998 by Columbia Japan
This box set of background music includes many previously unreleased music cues, TV edits of theme songs, sound effects (discs 8-10) and instrumental versions. It comes with a book that lists the music cues for the entire series, which you can download from this page.
Thanks to the efforts of SailorMusic.net Forums members, a fairly comprehensive listing of these Studio Library cues is available. One forum member has made audio captures of the Studio Library cues from all five seasons: RattleMan’s Sailormoon Cues