If you are looking to download these tracks from digital platforms like Apple Music or Amazon Music, you’ll find that "Maxi" content is often split across the and standalone single releases:
Original Soundtrack - Ghostbusters [Bonus Tracks] - Amazon.com Ghostbusters Maxi MP3 Download
The term "Maxi" typically refers to the 12-inch vinyl singles popular in the 1980s that provided longer, club-friendly versions of hits. For Ghostbusters, this meant fans could hear nearly double the length of the original 4-minute track. If you are looking to download these tracks