Summary of Enhanced NRZ Code Properties

Abstract

A summary of the properties of Enhanced NRZ (ENRZ) for magnetic tape recording is presented. Major code properties are defined and, where informative, compared with competing recording codes. Considerable insight is given into the considerations for maximizing the recording density without abusing the limited bandwidth of the tape recording channel. Several standard configurations with multi-track deskewed formats currently in field use are presented with throughput rates up to 320 MBPS. Error-detection and correction for improving Bit Error Rates of inferior tapes to 10⁻¹⁰ is outlined.