Comment 48 for bug 476654

This is also an issue in 13.04. If I use icon on the launcher to eject, everything works properly. If I run umount /dev/sr0 and then use the hardware button everything is fine, but just pressing the button alone does not unmount the disk (in my case a DVD). Since it doesn't look like there has been much activity here, if I don't see a response in the next few days, I'll file a new bug to make sure it can be taken care of before 13.04 officially launches.