How to erase data from DVD RW

Open the Terminal application (in the folder Applications > Utilities).

Enter this command to list all the DVD burners connected to your Mac:

drutil list

If there is only one, enter this command to erase the DVD:

drutil -drive 1 erase full

If there are more than one DVD burner, use the number listed in the output of the first command. For instance, if you have 2 DVD burners, and you want to erase the data from the second DVD burner, replace the "1" in the command above with "2".

GCC-4247N can read and write CD media, and can read but not write DVD.

You need a DVD-RW drive for writing or erasing DVD-RW media.