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.