Ok that did the trick thanks. Is there any other way of opening the Disk Utility app if that is the only way to burn data files? Just curious. For me it seems little odd that it requires physical act of inserting media to launch to the app. For example, I had already had a CD-R in drive for a while so I had to eject and then reinsert so just wondering if there other way of doing it than just the "autolaunch" way.