dvd / cd not showing up on desktop
I've just inserted a blank DVD into my Macbook Pro but the disk is not appearing on the desktop. It's there in finder and I can burn to it using other software. I've just tested this and it works. And then it shows up on the desktop. But a blank disk doesn't. I just wanted to drop a few large video files onto it to burn and give to a friend but had to go throw a third party software to do it. I used to just drop files into a disk icon on the desktop and then drag to eject and be asked if I wanted to burn the disk. Easy. But now that doesn't seem to work.
Am I doing something wrong?
I've checked that the box is ticked under the finder preferences but it makes no difference. What is going on?
MacBook Pro, OS X Mavericks (10.9.4)