The amount of position error written into a servo burst pattern can be
reduced by using additional media revolutions to write the pattern. Where
the edges of two servo bursts are used to define a position on the media,
trimming the first burst and writing the second burst on separate
revolutions of the media will result in a different amount of position
error being written into each burst. The end result will be a reduction
in the overall error in position information. In order to further reduce
the position error given by a burst pair, each burst also can be trimmed
and/or written in multiple passes. Additional bursts can also be written,
such as for each data track centerline. The overall error in position
should decrease as the number of passes used to write a burst pair
increases. Also, additional bursts can be written in separate passes in
order to further reduce position error while avoiding coherence concerns.
This description is not intended to be a complete description of, or
limit the scope of, the invention. Other features, aspects, and objects
of the invention can be obtained from a review of the specification, the
figures, and the claims.