About the above mentioned DSD format. In most cases, DSD is simply a shell. True DSD is recorded as DSD but this is rare, given the recording needs to be done in one complete take.
Preservation
"It’s important to acknowledge that the thousands of people who insist that the original vinyl release of an analog-era recording often sounded better than did the CD re-issue aren’t wrong.
https://www.realhd-audio.com/?p=7251
It’s only their hasty conclusion that this was due to an inherent fault of LPCM that’s mistaken."
https://www.realhd-audio.com/?p=7251