I copied a disk image of a friend's DVD to my Powerbook hard disk some time ago. I was hoping to just burn the image (ie, a folder called "VIDEO_TS" which contains several files eg, VTS_01_1.VOB, VTS_01_0.IFO) to a new DVD-R to make a playable disk. When I insert the disk, i-DVD automatically launches. The blank dvd doesn't appear on my desktop or in the Finder. How can I achieve this seemingly simple objective?