I have the same issue with a WD My Book Firewire drive, except that in my case, the drive seems to eject for an instant, but immediately act as if it were plugged in again; I also get the "Cannot eject volume" error.
I have the same issue with a WD My Book Firewire drive, except that in my case, the drive seems to eject for an instant, but immediately act as if it were plugged in again; I also get the "Cannot eject volume" error.