Always love it when my CD collecting intersects with other stuff I love. Found these being sold as a set on eBay last week - picked up from the post office today. :
Sailor Moon – Songs From The Hit TV Series (1996, CD) - Discogs
Sailor Moon - The Superhits For Kids vol.5: Heart Beats | Sailor Moon Wiki | Fandom
Sailor Moon - The Superhits For Kids vol. 6: Starlight | Sailor Moon Wiki | Fandom