Comment 16 for bug 562978

$ apt-cache policy udev
udev:
  Installed: 151-11
  Candidate: 151-11
  Version table:
 *** 151-11 0
        500 http://archive.ubuntu.com/ubuntu/ lucid/main Packages
        100 /var/lib/dpkg/status

Works for me - no more phantom blank cd icon. Thanks for the fix!