I just had the same thing. Ejecting the phantom disc fixed the issue for me.
-- Brasero disk burner won't get past "Preparing to write." https://bugs.launchpad.net/bugs/486960 You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to brasero in ubuntu. -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs