Magnetic tape onto which information may be recorded on either side
exhibits the risk of having information recorded on one side affect the
opposite side when the two sides are adjacent, such as when the tape is
wound in a tape pack. The chance that information recorded onto one
surface of a double sided magnetic tape will affect information recorded
on the other surface of the magnetic tape is reduced by keeping fields
emanating from a recorded region less than about one-half the coercivity
of the magnetic medium onto which the information is recorded.