How do you calculate the
sha1 of a CD-ROM disc under MacOS X?
On Linux (RedHat) I use
How do I do the same thing on Mac using
To find out which
Then you need to unmount the volume (not eject the device). Open Disk Utility, select the volume (not the device) in the list, right-click, and select Unmount "Name of Disk".
Then you can use