I went through Brads HIStory podcast again (recommended, go check it out):
https://itswmjpodcast00.podbean.com...-with-matt-forger-rob-hoffman-and-tony-black/
Here are some quotes that may be interesting:
Timestamp: 59:40
Brad Sundberg: One question is, did you ever get the feeling in a session that this song is something special and what song was it for you? What song did you work on that you just knew "this is bananas, this is gonna be around for a long time".
Tony Black: *Talks about YANA and SiM*
Rob Hoffmann: Im with you on that. My first experience with SiM was hearing it at Sony studio. The beginning of my Michael sessions was Bruce and Rene.
We were working on 2Bad or what was to become 2Bad and a lot of other tracks. Tracks nobody has ever heard before, just to fuel the rumour. Theres probably 20 Rene songs out there, maybe more.
Timestamp: 01:06:20
Brad Sundberg: Was there a song on the album you felt unsure of or think didn't fit on the album? *talks about DS*
Tony Black: I don't really know if I have enough contact with all the songs to know "ok that one shouldn't have made it". I can't really think of a song. *talks about hiphop* Everything felt like it belonged. There are some songs that I can't even tell you what they were.
I do remember (songs) from different other contributers that didn't made the album I think should have. There is a lot of those where I thought "thats a good one", but then they're gone. Theres a bunch of Babyface collaborations that were amazing. And they hit the bin, I don't know.