Outdated terminology "On Disk"

Not big of a problem. But it should read in Projects, "On Drive", not "On Disk", I think.

Needless to say that we are living in an age that did almost already get the disks, or optical drives extinct. Just the Hard Disk Drive are still here, because the Solid State Drives are a bit expensive.

The term "Disk" is too strongly referring to drives that use an actual disk. Of course nobody would think that we only could save data on a HDD. But the term "drive" is much more universal, and doesn't sound silly MS-DOS, or Windows XP kind of era. It's in every drive type name already also:

Hard Disk Drive
Solid State Drive
Flash Drive
CD/DVD/Bluray Drive
Freaking Floppy Disk DRIVE

Even the super fast M.2 are based on Solid State Drive technology. So are considered SDD. "Drive" is a synonym that makes a bit more sense than "disk".