The systems, methods and products of the invention include systems and
methods for manufacturing servo tracks on a magnetic tape. In one aspect,
the invention includes systems for manufacturing magnetic tapes having
servo tracks thereon wherein the servo tracks are optically detectable
and are capable of being processed by a servo control system for
maintaining alignment of a magnetic recording head with the data tracks
on the recording side of the magnetic tape. In one practice, the
manufacturing systems described herein engrave the servo tracks onto the
non-recording side of a magnetic tape by directing a laser beam at the
non- recording side of the magnetic tape. In another practice, the
manufacturing systems described herein engrave the servo tracks onto the
magnetic side of a magnetic tape by directing a laser beam at the
magnetic side of the magnetic tape. Such engraved patterns can act as
optical servo tracks for maintaining alignment of the recording head with
the data tracks on the magnetic tape.