A method of performing information storage comprises the steps of
providing a medium comprising a plurality of concentric rings for storage
of information. The medium is written to by a process comprising
simultaneously writing and erasing elements in at least two adjacent
rings, respectively a first ring and a second ring. Subsequent to
simultaneously writing and erasing elements in at least the first and
second rings, simultaneously writing and erasing elements in a third
concentric ring, wherein the third ring is adjacent the second ring.