MATLAB uses the disk volume label for its licensing purposes, so that would probably work in your application as well.
Here is one way to get it:
[s, out] = dos('vol');
sc = strsplit(out,'\n');
VolLbl = sc{2}(end-9:end); % ‘VolLbl’ is a (1x9) char array
This will work on Windows. I don’t have access to a Mac or Linux machine, so I don’t know if this would work with them. You might have to write separate versions for those OSs.
