You can’t just take a cd or lp, digitize it, put it on a server and start charging people to stream it. You have to have a contract with the record company that owns the rights to the music, and they will send you a digital file, as cleeds said above, and whatever other information the deal calls for,
Where does music come from that streams?
If I was creating my own streaming company, would I reproduce songs from a CD or from a record? So when I listen to my streaming source, qobuz, where do they get the music I listen to? Does the music come from master tapes? Well that would seem to be a pretty good place to get it
Sometimes I wonder, a particular song on qobuz doesn’t sound very good and I know I’ve heard it better in the past. And most stuff sounds pretty good and comparable to other sources.