Durable Medium de Hitachi combina almacenamiento WORM (Write Once, Read Many) y las características de una app web para clientes desarrollada por Hitachi. Durable Medium posibilita el almacenamiento seguro y accesible de todas las versiones de un documento, desde la primera a la última, y desde cualquier lugar. 

Hitachi’s Durable Medium is a combination of WORM (Write Once, Read Many) storage and a web application for customers developed by Hitachi in 2016. It enables each and every customer document, from the first version to the latest, to be stored in a safe and secure way and to be accessible at any time from anywhere.