Demon Selects Quantum/ATL for Long-Term Storage Solutions; United Kingdom ISP Selects M1500 DLTtape Library as Data Requirements Soar.

Business Editors/High-Tech Writers

IRVINE, Calif.--(BUSINESS WIRE)--July 2, 2001

Quantum|ATL, a subsidiary of Quantum Corporation (NYSE:DSS) and a leading supplier of intelligent DLTtape(TM) automation products for networked computers, today announced that it is now supplying its scalable M1500 DLTtape library to Demon, the Internet brand of Thus plc in the United Kingdom (UK). The M1500 is an enterprise-class library that leads the industry in modularity, scalability, availability and density. Thus' purchase of the tape library will ensure its customers' storage and backup requirements are met both now and in the future.

"As our customers' Web sites are becoming more complex, they need to store increasing volumes of data," said Colin Whitbread, group director of operations for Thus. "To meet this demand, we needed to implement a robust and efficient storage facility to accommodate customer requirements. We selected Quantum|ATL's M1500 library because it is fast, reliable, flexible and, most importantly, scalable. The scalability allows us to add storage capacity in an incremental manner as our customers demand, and in a way that does not force us to second-guess the market trend -- potentially leaving us with unused storage capacity if we miscalculate."

"Thus (Demon) was particularly impressed with the overall design concepts, like ease of tape cartridge loading and unloading via the front panel, clearly visible library robotics and the ability of the M1500 to add modules without the need for downtime," said Duke Ebenezer, president and CEO of Quantum|ATL subsidiary M4 Data, based in England.

The storage solution was supplied through Premier Storage and Headway in the UK, and has grown to seven M1500 modules in a library, with two additional modules used as standalones, providing backup for the other servers on the enterprise network. Each module consists of 20 slots of DLT 8000 technology with a total capacity of 7.2 TB native (14.4 TB compressed).

Demon was established in 1992 and was the first commercial European ISP. It became the market leader and by 1998 had signed up 180,000 subscribers in the UK and launched a sister company in the Netherlands. In the same year, Scottish Telecom, now rebranded as Thus, acquired Demon.

About Thus

Thus plc is one of the UK's leading providers of voice, data, Internet and interactive services, operating principally under the Thus and Demon brands.

Thus offers a variety of Internet services, mainly under the Demon brand in the UK and in the Netherlands. Demon is one of the UK's largest Internet Service Providers (ISPs), serving both the residential and business markets. Demon offers subscription dial-up services and business access services, including web hosting, web design, leased line and e-commerce facilities, together with wholesale Internet services and non-subscription Internet access.

Demon has already established itself as the UK's fourth largest web hosting company and one of the largest in the world, as reflected in the December 2000 Netcraft survey results. "Internet Magazine" voted Demon the "Best ISP on the Planet" in its December 2000 survey and recent research by Blauw Research has found Demon NL to be the best-valued provider in the Netherlands. In July, Demon topped a J.D. Power and Associates UK Internet Service provider customer satisfaction study, gaining special recognition from customers for speed of access, customer service and e-mail services. In addition, Demon was found to be the most popular ISP amongst medium-sized businesses and the fourth most popular ISP amongst small-sized businesses in the Oftel SME survey (June 2000). Most recently, Demon has become the UK's number one audio/video-streaming site, through the popularity of the Big Brother Web site, with most users using Demon to access the live netcast.

Thus offers a wide range of data and telecommunication services, primarily to the UK business market, including direct and indirect switched, freephone (toll-free), premium rate and other number translation services. The company provides non-switched products including capacity, leased line and managed data services.

Thus is also a leading provider in the call center services market delivering telemarketing, call center integration, fulfilment, consulting and disaster recovery services on a fully outsourced basis. Thus services are available individually or on a fully integrated basis to support individual customer requirements.

About Quantum|ATL

Quantum|ATL is a worldwide leader in the design, manufacture and service of automated tape libraries used to manage, store and transfer data in enterprise networked computing environments. Quantum|ATL's objectives are to fulfill our customers' needs for storage growth and support, while providing the security that comes from reliable products. Our DLTtape(TM) and LTO Ultrium library systems are sold worldwide through direct sales, original equipment manufacturers (OEM) and an extensive network of authorized resellers and distributors. Headquartered in Irvine, Calif., Quantum|ATL operates one of the world's largest manufacturing facilities for automation technology and complies with ISO 9001 quality system standards. Sales and service are provided throughout major cities in North America, Latin America, Europe and Asia. For additional information, please visit the Web site at www.QuantumATL.com.

"Safe Harbor" Statement under the U.S. Private Securities Litigation Reform Act of 1995: This press release contains certain "forward-looking" statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, statements regarding the anticipated impact of the M1500 purchases on Thus/Demon and its customers, and the ability to help those companies precisely plan for future storage needs. These statements are based on management's current expectations and are subject to certain risks and uncertainties that could cause actual results to differ materially from the forward-looking statements contained herein. Factors that could cause actual results to differ materially from those described herein include the ability of Quantum|ATL to predict and meet future customer needs, the significant uncertainty regarding competing products, and changes in the economic environment of the storage industry and the market in general. More detailed information about these risk factors, and additional risk factors, are set forth in periodic filings with the Securities and Exchange Commission, including but not limited to, those risks and uncertainties listed in the section entitled "Management's Discussion and analysis of Financial Condition and Results of Operations -- Trends and Uncertainties," pages 37-42, in Quantum's Quarterly Report on Form 10-Q filed with the Securities and Exchange Commission on February 14, 2001. Quantum is under no obligation (and specifically disclaims any such obligation) to update or alter its forward-looking statements, whether as a result of new information, future events or otherwise.

Note to Editors: Quantum and the Quantum logo are trademarks of Quantum Corporation, registered in the United States and other countries. DLT, DLTtape and Quantum|ATL are trademarks of Quantum Corporation. All other trademarks are the property of their respective owners.

In the company name Quantum|ATL noted in this news release, there is a pipe symbol between Quantum and ATL. This symbol may not appear properly in some systems.