QIC and DAT Tape Technology Overview 
Outlines the QIC and DAT (helical-scan) tape technologies and associated standards. Includes graphics, diagrams and an integrated glossary. This page is from "The PC Technology Guide."
Cleaning Methods for Helical Scan Recorders
Contains the current National Media Laboratory (NML) recommendations for the use of cleaning fluids on tape recorders.
Comparing helical-scan and digital linear tape (DLT) technology
From Quantum, this technical information paper compares DLT tape drives to helical-scan tape technology.
Redwood 3D - Helical cartridge subsystem
A product description, architectural review, and specifications of the Redwood 3D helical cartridge product from StorageTek Technology Corporation.