Create iso file from file on a Mac

1) Open Disk Utility and choose FILE > NEW IMAGE > IMAGE FROM FOLDER

2) Choose the folder and select IMAGE FORMAT as DVD/CD Master.

3) Navigate to where the file is created and run the following command;

hdiutil makehybrid -iso -joliet -o LIC.iso LIC.cdr

where LIC.iso is the TARGET and LIC.cdr is the SOURCE.

On Linux we would use;

mkisofs -o LIC.iso /path/to/LIC

where LIC.iso is the TARGET and LIC is the SOURCE folder.

If we have a cdrom as a source, we could use;

dd if=/dev/cdrom of=/path/to/LIC.iso