click of death

( n.)

   A syndrome of certain Iomega ZIP drives, named for the clicking noise
   that is caused by the malady. An affected drive will, after accepting
   a disk, start making a clicking noise and refuse to eject the disk. A
   common  solution for retrieving the disk is to insert the bent end of
   a  paper clip into a small hole adjacent to the slot. "Clicked" disks
   are generally unusable after being retrieved from the drive.

   The  clicking  noise is caused by the drive's read/write head bumping
   against its movement stops when it fails to find track 0 on the disk,
   causing the head to become misaligned. This can happen when the drive
   has  been  subjected to a physical shock, or when the disk is exposed
   to  an electromagnetic field, such as that of the CRT. Another common
   cause is when a package of disks is armed with an anti-theft strip at
   a store. When the clerk scans the product to disarm the strip, it can
   demagnetize the disks, wiping out track 0.

   There  is evidence that the click of death is a communicable disease;
   a  "clicked" disk can cause the read/write head of a "clean" drive to
   become  misaligned. Iomega at first denied the existence of the click
   of death, but eventually offered to replace free of charge any drives
   affected by the condition.

[glossary]
[Reference(s) to this entry by made by: {Death, X of}]