Spotify has become really popular, and it is used by a lot of people.
It has been discovered a bug, bywhich a lot of data are written to your drive, even when you are not using it.
This has been confirmed by some users, and also by Ars Technica who have estimated something like: 1 TB per day.
That’s huge, since it’d kill your ssd drive really fast, but don’t worry a fix wil be released with version 1.0.42.
If you haven’t received this update yet, don’t worry, it is just a matter of time.