After watching the DS
install video, youtube suggests a bunch of clips, one being the Rocky Mountain AUdio Fest from 2012 on DSD as an emerging format (and free from SACD as a medium)
It's 2 hours but I've almost watched it all.
It's got a great panel of luminaries in the recording world and mastering world.
Also around 1 hour ten mins in, Cookie Marenko and Bruce Brown admit many previous SACD's came from 24/96 files, and on some, HD tracks then ripped the SACD to 88.2 !!!
They strive to get the masters as much as possible (the labels often try to deter this (at least back in 2012) ) and CHad Kaseem retorts he only gets the analog master or won’t do the DSD project. (unless the master was lost).
NOTE: link is corrected and obviously I meant to type 96K in the title - I don’t think a sample rate of 9K would sound very good.