Erasing DVD RW data

[JDN]

My friend gave me a CD RW of stuff, and i need to erase the data thats on the disk. When i drag and drop the files into the trash its says 'you do not have sufficient priviledges'. How do i get the data off the disk so i can put other stuff on it?

 

[deebster]

Load the disc, open Disk Utility (Applications>Utilities folder), select the disc in the pane on the left (select the top level of the disc next to the disclosure triangle), choose the 'Erase' tab on the right and click 'Erase'.

A quick erase should be sufficient, which will delete the disc's table of contents (a list of what's on the disc) without actually overwriting the files themselves.

If you want you can do a full erase, which will actually overwrite the files too, leaving a real blank disc from which the old files should not be recoverable. This is not necessary unless you need to know the files are gone, gone, gone before you use the disc again.