Since DAEMON Tools for Mac 5.1, you can create a physical copy of an optical disc. Clone a disc wizard is a part of Disc Burn paid group.
To start cloning, click icon on the sidebar and perform the following steps:
Insert the disc you want to clone and a blank disc to physical drives and choose them. You can use the same drive for both options. In this case, you will need to insert a blank disc after the temp copy of the source disc is created.
Check Finalize option if you do not plan to burn something to the destination disc later.
Check Erase disc before burning if the destination disc is rewritable and is not blank. The data will be fully erased from it.
Click Clone and wait a few minutes while the copy is being created.