Filed by Quantum Corporation Pursuant to Rule 425

Under the Securities Act of 1933

And Deemed Filed Pursuant to Rule 14a-12

Under the Securities Exchange Act of 1934

Subject Company: Advanced Digital Information Corporation

Commission File No.: 0-21103

Profitability. Leadership. Growth.

May 2006

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

2

Tiered Storage Environment

Primary

Storage

Near Line

Storage

2nd to N

Storage

Deep

Archival

•

Mission Critical

•

Mirroring

•

Most expensive

•

Most reliable

•

Most scalable

•

High data value

•

High availability

•

Medium

performance

•

Less expensive

•

Readily accessible

•

Medium to high

data value

•

Disk-based backup

•

Limited scalability

•

High capacity

•

Low performance

•

Low cost

•

Tape archival

•

Infrequently

accessed

•

Archival data offsite

•

Regulatory

requirements:

WORM, security

•

Low data value

•

Infrequently

accessed

th

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

3

Historical Perspective

•

25 years of storage experience and expertise: in 2001, began the

transition from hard drives to a new mission

•

Spent past several years re-engineering every aspect of the company

–

Legacy issues

–

Organization/infrastructure

–

Cost structure

–

Certance

acquisition & integration

–

Research & development in new products & platforms

–

Quality improvement

The largest independent provider of backup, recovery

and archive solutions

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

4

Financial Results Illustrate Progress

*Financial results reflect Income/loss from continuing operations

2 cents loss

7 cent profit

$13.0M

$230M

(29%)

32%

$794M

FY’05

36 cents loss

4 cents loss

($6.2M)

$250M

(31%)

33%

$808M

FY’04

23 cent loss

10 cent profit

$19.3M

$229M

(27.5%)

30%

$834M

FY’06

81 cents loss

GAAP EPS*

7 cents loss

Non-GAAP EPS**

($10.8M)

Net Income

(loss)*

$278M

(32%)

Opex

(% of Revenue)

32%

GM Rate

$871M

Revenue

FY’03

Non-GAAP**

**Non-GAAP

financial

measures

presented

here

are

not

prepared

in

accordance

with

GAAP.

For

a

presentation

of

the

GAAP

measures,

and

a

reconciliation

of

the

differences between the GAAP and non-GAAP measures, please visit the Investor Relations section of our website located at www.Quantum.com.

•

FY05 first full year of non-GAAP profit in 3 years

•

Focus on resolving legacy issues

•

Reassessed roadmap for new products and platforms

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

5

FY06 was a Pivotal Year

•

Develop an execution platform that facilitates success

–

Simplified business systems to one Oracle platform; consolidated

operations and manufacturing sites; consolidated engineering and

marketing functions; launched new Quantum.com site

•

Create the industry’s leading tape business

–

Launched 11 new products: SuperLoader3, PX500 Series, DLT-V4, SDLT

600A, DLT-S4, the Quantum security framework and more!

•

Build a promising growth platform

–

Launched StorageCare Guardian, DX3000, DX5000, DPM5500 and

GoVault

•

Settle legacy issues

–

Sun/STK lawsuit

–

All issues are resolved

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

6

Develop stronger

execution platform

that

facilitates success by

leveraging Quantum’s

breadth to create

sustainable cost and

quality advantages

Build on industry’s

leading independent

tape business

by

capitalizing on unique

position as developer

of tape drives, media

and automation

Create growth

platform

by moving

beyond tape with

disk, software and

services optimized for

tiered storage

environments

Quantum’s Strategic Priorities

More diverse, differentiated and valuable storage market position

Increased customer value and better overall experience

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

7

A Transforming Transaction

The two leading, independent backup, recovery

The two leading, independent backup, recovery

and archive providers…

and archive providers…

are joining together to create one of the

are joining together to create one of the

industry’s largest, independent storage

industry’s largest, independent storage

company and one that will provide customers

company and one that will provide customers

the most comprehensive and integrated range

the most comprehensive and integrated range

of solutions for securely storing, managing,

of solutions for securely storing, managing,

protecting and recovering their data in open

protecting and recovering their data in open

systems IT environments

systems IT environments

+

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

8

Transaction Summary

•

Expected 3 to 4 months after announcement

Closing

•

ADIC shareholder approval

•

HSR clearance

•

No financing condition

•

Other customary conditions

Conditions

•

Combined cash on hand of $320M

•

Debt of up to $500M

•

Obtained formal commitment from KeyBanc

Financing

•

$770 million, net of transaction expenses

Total Offer Value

•

$12.25 per share in cash or 3.461 shares of Quantum

stock for each ADIC share in lieu of cash. 

•

Stock election is subject to pro-ration such that Quantum

will issue no more than 19.95% of its stock outstanding

Offer Price

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

9

Powerful Strategic Rationale

Enhances

financial

position

Expands

market

access

Stronger

growth

platform

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

10

Growth Opportunities

•

Data growth rates show no signs of slowing

•

Storage remains a top IT decision-maker priority

•

Regulatory compliance issues increase storage

complexity, risk and cost

•

Existing storage architectures no longer meeting

requirements 

•

Users seeking trusted suppliers that can deliver

best-of-breed solutions

•

Constrained IT budgets dictate strong focus on

total cost of ownership

001011010010101010101010101000101010010101001001000100

001011010010101010101010101000101010010101001001000100

100010001101110001011000001111001111010010111001001010

011011100010110000011110011110100101110010010101010101

000001001011010010101010101010101000101010010101001001

000100100010001101110001011000001111001111010010111001

001010101010100000100101101001010101010101010100010101

001010100100100010010001000110111000101100000111100111

101001011100100101010101010000010010110100101010101010

101010001010100101010010010001001000100011011100010110

000011110011110100101110010010101010101000001001011010

010101010101010101000101010010101001001000100100010001

101110001011000001111001111010010111001001010101010100

000101101110001011000001111001111010010111001001010101

010100000100101101001010101010101010100010101001010101

001011010010101010101010101000101010010101001001000100

100010001101110001011000001111001111010010111001001010

011011100010110000011110011110100101110010010101010101

000001001011010010101010101010101000101010010101001001

000100100010001101110001011000001111001111010010111001

001010101010100000100101101001010101010101010100010101

001010100100100010010001000110111000101100000111100111

101001011100100101010101010000010010110100101010101010

101010001010100101010010010001001000100011011100010110

000011110011110100101110010010101010101000001001011010

010101010101010101000101010010101001001000100100010001

101110001011000001111001111010010111001001010101010100

000101101110001011000001111001111010010111001001010101

010100000100101101001010101010101010100010101001010101

001011010010101010101010101000101010010101001001000100

100010001101110001011000001111001111010010111001001010

011011100010110000011110011110100101110010010101010101

000001001011010010101010101010101000101010010101001001

000100100010001101110001011000001111001111010010111001

001010101010100000100101101001010101010101010100010101

001010100100100010010001000110111000101100000111100111

101001011100100101010101010000010010110100101010101010

101010001010100101010010010001001000100011011100010110

000011110011110100101110010010101010101000001001011010

010101010101010101000101010010101001001000100100010001

101110001011000001111001111010010111001001010101010100

000101101110001011000001111001111010010111001001010101

010100000100101101001010101010101010100010101001010101

Unprecedented Opportunity for a Storage Industry Innovator to

Unprecedented Opportunity for a Storage Industry Innovator to

Deliver Integrated Backup, Recovery and Archive Solutions

Deliver Integrated Backup, Recovery and Archive Solutions

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

11

Total Storage Market

2006

CAGR%

Network Infrastructure

3.2

$     

17.5%

Management Software

8.9

$     

11.6%

Tape Devices / Systems

7.9

$     

5.1%

Host-Attached Disk

7.3

$     

-5.5%

Disk Arrays

18.4

$   

5.8%

Total

45.7

$   

5.3%

Recovery Storage Market

2006

CAGR%

Recovery Services

0.08

$   

14.9%

Recovery Net. Infra.

1.3

$     

23.8%

Recovery Mgmt. Software

5.3

$     

12.0%

Tape Devices / Systems

7.9

$     

5.1%

Recovery Disk Systems

4.9

$     

15.7%

Total

19.4

$   

10.6%

$20 Billion Growth Market 

Total Storage Market

End-user Revenue

$ Billions

“Recovery”

Storage Market

End-user Revenue

$ Billions

CAGR% for 2003-2008

Source: Gartner and Quantum

Target Market Represents Growth Opportunity that is 2x

Target Market Represents Growth Opportunity that is 2x

the Rate of Storage Industry Overall

the Rate of Storage Industry Overall

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

12

Stronger Platform for Growth

Our Vision: Comprehensive and integrated solutions for

Our Vision: Comprehensive and integrated solutions for

securely storing, managing, protecting and recovering data in

securely storing, managing, protecting and recovering data in

open systems IT environments

open systems IT environments

Core

Backup &

Recovery

Remote

Site

Disaster

Recovery

Workflow

&

Archiving

Storage

Security

Tiered

Data

Center

Storage

Data

Mgmt.

FastStor

FastStor

Scalar i500

Scalar i500

PX500 Series

PX500 Series

Scalar 10k

Scalar 10k

SuperLoader 3

SuperLoader 3

iSurety

iSurety

Guardian

Guardian

Global Services

Global Services

Pathlight VX

Pathlight VX

DX-Series

PX720

PX720

Scalar i2000

Scalar i2000

DPM5500

DPM5500

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

13

Market Access = Revenue Opportunity

•

Over 3000 employees

•

Significant global presence

•

Substantial customer access capabilities

–

3x the sales force and 2x the service sales force

–

Broad base of OEM relationships

–

Over 250 enterprise VARs

–

Over 5,000 VARs actively selling product each

quarter

–

Over 200,000 automation systems installed in last

four years

–

Almost 20,000 systems covered by service uplift

contracts

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

14

Dual Go-to-Market Approach

Workgroup                   Midrange                  Enterprise

Workgroup                   Midrange                  Enterprise

Quantum Strengths:

•

Tape drives

and media

•

Low-end tape

automation

•

Removable

disk drives

•

Security

•

High volume channel

ADIC Strengths:

•

Enterprise tape

automation

•

Data management

software

•

Enterprise sales

expertise

•

Direct and vertical

accounts

•

EMEA and APAC field

coverage

Common strengths;

More critical mass

•

Midrange tape

automation

•

Disk-based backup

•

Services

•

OEM partnerships:

IBM, Dell, HP, Fujitsu

Siemens, Sun

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

15

Enhances Quantum’s Financial Position

•

Highly accretive to EPS

–

Up to 15 cents accretive to cash EPS in the first full year of combined

operations

•

Annual cost synergies of approximately $45 million, primarily from:

–

COGS economies of scale and manufacturing efficiencies

–

Reduction of duplicative operating expenses

–

Sharing of R&D and marketing costs

•

Higher margin revenue base

–

Quantum branded revenue ~ 30% vs. ADIC branded revenue ~ 60%

–

Increased service revenue

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

16

Integration is Critical

•

Dedicated experienced integration leader

•

Cost synergies are well concentrated

–

R&D

–

G&A

–

Services

–

Operations

•

Sales

and

marketing

is

largely

complementary

–

minimal

disruption

•

Additional sales opportunities

–

Tape drive and media

•

Customer and partner feedback has been positive

•

Integration plan is underway

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

17

Integration Philosophy

•

Pick the best

–

Management

–

Products

–

Operations

•

Make

decisions

soon

after

close

on

all

critical

areas,

including

synergy

actions

•

Blend sales force and capabilities: High volume (Quantum) and High

touch (ADIC)

•

Aggressive communications to relevant constituents to ensure smooth

integration: customers, employees, partners

•

De-leverage quickly and prudently

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

18

11

80% of Synergies are Concentrated in Four

Areas

Manufacturing OH & BOM

•

Service infrastructure

utilization improvement

•

Higher manufacturing

utilization

•

Supply chain management

•

CM consolidation

•

BOM reduction

Sales & Marketing

•

HC reductions for

duplicative functions

•

Marketing/tradeshow

programs consolidation

•

Administrative redundancies

G&A

•

HC reductions for

duplicative functions

(HR/Facilities/Admin/Exec)

•

Audit/legal/IR fees reduced

•

BOD & R/E elimination

•

IT redundancies

R&D

•

HC reductions

•

Shared R&D costs

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

19

Product Portfolio

DX100

DX30

CDL Autoloader

SuperLoader™

3

PX502

PX506

PX510

PX720

LTO  FH

SDLT / DLT-S4

LTO  HH

DLT VS / DLT-V4

DDS / DAT

Travan

DISK-BASED BACKUP APPLIANCES AND SYSTEMS

STORAGE DEVICES AND MEDIA

DX5000

DPM5500

DX3000

TAPE AUTOMATION SYSTEMS

DPM5500

New

New

New

New

New

New

New

New

New

SDLT 600A

GoVault

New

New

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

20

Award-Winning Global Services

Eight Technical

Eight Technical

Assistance

Assistance

Centers

Centers

Over 400 Strategic

Over 400 Strategic

Stocking

Stocking

Locations

Locations

90 Countries

90 Countries

Covered

Covered

>50 Product Lines

>50 Product Lines

Supported

Supported

>18k Contracts

>18k Contracts

2005, 2006

NorthFace Award

Customer Sat. Excellence

2006

SSPA STAR Award

Best Practices in Support

2004, 2005, 2006

SCP Certified

Support Effectiveness

2005

Positive Rating

Support / Acct. Management

Over 700 Service

Over 700 Service

Team Members

Team Members

(+ Partners)

(+ Partners)

Leadership in

Leadership in

Enabling

Enabling

Technology

Technology

(iSurety, Guardian)

(iSurety, Guardian)

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

21

Quantum Summary Historical Financials

Free Cash Flow defined as Cash From Operations minus Capital Expenditures. EBITDA includes interest income. Fixed Charge Coverage equals EBITDA divided by Interest Expense + CapEx

   ($ in Millions)

Fiscal Year Ended March 31,

2000

2001

2002

2003

2004

2005

2006

Revenues

$1,418.9

$1,346.1

$1,029.7

$870.8

$808.4

$794.2

$834.3

Growth

8.9%

(5.1%)

(23.5%)

(15.4%)

(7.2%)

(1.8%)

5.1%

Gross Profit

$648.9

$612.5

$377.6

$267.2

$251.7

$235.5

$231.9

Margin

45.7%

45.5%

36.7%

30.7%

31.1%

29.7%

27.8%

EBITDA

$425.4

$350.8

$103.7

$44.5

$55.1

$64.5

$52.1

Margin

30.0%

26.1%

10.1%

5.1%

6.8%

8.1%

6.2%

Operating Income

$344.6

$309.4

$41.9

($16.5)

($4.5)

$2.0

($4.2)

Margin

24.3%

23.0%

4.1%

(1.9%)

(0.6%)

0.3%

(0.5%)

Net Income

$40.8

$160.7

$42.5

($264.3)

($62.0)

($3.5)

($41.5)

Margin

2.9%

11.9%

4.1%

(30.4%)

(7.7%)

(0.4%)

(5.0%)

Interest Expense

$19.0

$17.7

$23.0

$24.4

$17.6

$11.2

$10.0

CapEx

$35.2

$58.6

$41.3

$18.5

$22.3

$19.8

$24.4

Senior Secured Debt

-

-

-

-

-

-

-

Total Debt

$287.5

$287.5

$287.5

$287.5

$160.5

$160.0

$160.0

Free Cash Flow

$461.5

$119.9

($2.5)

($0.9)

($24.3)

$6.5

($11.5)

EBITDA / Interest

22.4x

19.9x

4.5x

1.8x

3.1x

5.8x

5.2x

Fixed Charge Coverage

7.9x

4.6x

1.6x

1.0x

1.4x

2.1x

1.5x

Senior Debt / EBITDA

NM

NM

NM

NM

NM

NM

NM

Total Debt / EBITDA

0.7x

0.8x

2.8x

6.5x

2.9x

2.5x

3.1x

Total Debt / Capital

32.7%

18.2%

33.9%

44.7%

34.4%

34.0%

36.3%

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

22

ADIC Summary Historical Financials

   ($ in Millions)

Fiscal Year Ended October 31,

LTM, as of

2000

2001

2002

2003

2004

2005

1/31/2006

Revenues

$290.3

$364.7

$337.6

$424.0

$454.8

$454.2

$462.6

Growth

27.7%

25.6%

(7.4%)

25.6%

7.3%

(0.1%)

1.9%

Gross Profit

$106.6

$105.8

$91.8

$131.9

$129.2

$139.1

$141.3

Margin

36.7%

29.0%

27.2%

31.1%

28.4%

30.6%

30.5%

EBITDA

$20.0

$27.8

$32.2

$40.6

$37.9

$40.7

$39.3

Margin

6.9%

7.6%

9.5%

9.6%

8.3%

9.0%

8.5%

Operating Income

$32.0

$14.4

($11.9)

$9.5

$2.2

$6.3

$8.6

Margin

11.0%

3.9%

(3.5%)

2.2%

0.5%

1.4%

1.9%

Net Income

$95.4

($10.8)

$1.6

$12.5

$7.7

$14.3

$18.0

Margin

32.9%

(3.0%)

0.5%

2.9%

1.7%

3.1%

3.9%

Interest Expense

$0.4

$0.3

$0.2

$0.0

$0.0

$0.0

$0.0

CapEx

$15.2

$20.1

$26.9

$14.3

$14.6

$13.9

$16.1

Senior Secured Debt

-

-

-

-

-

-

-

Total Debt

$1.3

$1.2

$1.0

$1.0

$0.0

$0.0

$0.0

Free Cash Flow

($33.8)

($55.6)

$13.1

$1.7

$17.0

$34.8

$32.2

EBITDA / Interest

50.9x

93.8x

177.1x

NM

NM

NM

NM

Fixed Charge Coverage

1.3x

1.4x

1.2x

2.8x

2.6x

2.9x

2.4x

Senior Debt / EBITDA

NM

NM

NM

NM

NM

NM

NM

Total Debt / EBITDA

0.1x

0.0x

0.0x

0.0x

0.0x

0.0x

0.0x

Total Debt / Capital

0.4%

0.4%

0.3%

0.3%

0.0%

0.0%

0.0%

Free Cash Flow defined as Cash From Operations minus Capital Expenditures. EBITDA includes interest income. Fixed Charge Coverage equals EBITDA divided by Interest Expense + CapEx

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

23

Summary

•

Coming together to become the largest independent provider of backup,

recovery and archive solutions

–

Address customers evolving data protection, retention and recovery needs

•

Most comprehensive and integrated range of solutions

–

Unparalleled portfolio of systems, software, devices, media and service capabilities

•

Benefits of scale and integration, and a single source of intelligent and

innovative products and services

–

Deliver unsurpassed value to customers and partners

–

Financially positioned to invest in new solutions to address emerging storage

challenges

•

Much stronger go-to-market infrastructure

–

Larger and better leveraged sales and service capabilities

–

Enhanced support for channel partners, OEMs and end-users

•

Broader base of R&D expertise provides opportunities for greater

innovation

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

24

Additional Information and Where to Find It

Quantum plans to file with the SEC a Registration Statement on Form S 4 in

connection

with

the

transaction,

and

ADIC

plans

to

file

with

the

SEC

and

mail

to

its stockholders a Proxy Statement/Prospectus in connection with

the

transaction. The Registration Statement and the Proxy Statement/Prospectus

will contain important information about Quantum, ADIC, the transaction and

related matters. Investors and stockholders are urged to read the Registration

Statement

and

the

Proxy

Statement/Prospectus

carefully

when

they

are

available. Investors and stockholders will be able to obtain free copies of the

Registration Statement and the Proxy Statement/Prospectus and other

documents

filed

with

the

SEC

by

Quantum

and

ADIC

through

the

web

site

maintained by the SEC at www.sec.gov. In addition, investors and stockholders

will

be

able

to

obtain

free

copies

of

the

Registration

Statement

and

the

Proxy

Statement/Prospectus from Quantum by contacting Investor Relations at (408)

944-4450 or IR@quantum.com, or from ADIC by contacting Stacie Timmermans

at (425) 881-8004 or stacie.timmermans@adic.com.

Quantum and its directors and executive officers may be deemed to be

participants in the solicitation of proxies from the stockholders of ADIC in

connection with the transaction described herein. Information regarding the

special interests of these directors and executive officers in the transaction

described herein will be included in the Proxy Statement/Prospectus described

above.

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

25

Forward-Looking Statements

This presentation contains forward-looking statements within the meaning of the federal

securities laws including, without limitation, statements regarding the following: the merger

transaction and the benefits and synergies of the merger; expectation that target market

represents growth opportunity compared to growth of storage industry; expected benefits

of increased financial strength; and the revenues, partners, markets, customers, products

and technologies of the combined company. These forward-looking statements are

subject to risks and uncertainties as well as assumptions that could cause the actual

results of Quantum to differ materially from those expressed or implied by such forward-

looking statements.

Such risks and uncertainties include, among others, the following: the approval of the

transaction by the stockholders of ADIC; the satisfaction of closing conditions to the

transaction, including the receipt of regulatory approvals; the successful and timely

integration of ADIC operations, technologies and employees with those of Quantum; the

ability to realize the anticipated benefits or synergies of the transaction in a timely manner

or at all; fluctuations in the demand for the products of the combined company; possible

development

or

marketing

delays

relating

to

product

offerings

of

the

combined

company;

the

introduction

of

new

products

or

technologies

by

competitors;

and

the

ability

of

the

combined company to achieve expected operating and financial results. A detailed

discussion of other risks and uncertainties that could cause actual results or events to

differ materially from such forward-looking statements is included in Quantum’s and

ADIC’s

most recent filings with the Securities and Exchange Commission. Quantum and

ADIC undertake no obligation and do not intend to update these forward-looking

statements to reflect events or circumstances occurring after this presentation.

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

26

Appendix

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

27

ADIC Information

•

ADIC is a publicly traded, NASDAQ listed (ADIC) company headquartered in Redmond, WA

–

LTM Revenue, EBITDA and market Cap of $462m, $39.5m and $511m (5/2/06)

respectively

•

ADIC is the world’s leading supplier of automated tape systems, customers include:

–

Technology: Cray, Dell, Fujitsu Siemens, HP, IBM, Microsoft, SAP, Siemens, Sony, Sun

Microsystems, Yahoo!

–

Financial/ Services: Abbey, Bank of China, CIT Group, Clifford Chance, Deutsche Bank,

Ernst & Young, Fidelity Investments, JP Morgan Chase

–

Commercial/Industrial: BP, ChevronTexaco, Corporate Express, Ford, Harley Davidson,

Johnson & Johnson, Shell

–

Telecommunications/Entertainment: BT, Deutsche Telecom, Disney, MCI, Nokia, Sprint

PCS, T-Mobile, Time Warner, Turner Broadcasting, Verizon

•

Uses a worldwide sales force, a global reseller network and OEMs. Products are sold under the

ADIC brand name and under the names of various OEM customers including Apple, Cray, Dell,

EMC, Fujitsu-Siemens, HP, IBM, and Sun/StorageTek. OEM customers accounted for 39% of

FY05 sales

•

As of October 31, 2005, ADIC had 1,109 full-time employees, including 275 in sales and marketing,

211 in engineering and research and development, 308 in global services, 200 in manufacturing

and operations and 115 in finance, general administration and management

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

28

ADIC Market Approach

•

ADIC is moving beyond simple hardware to focus on Intelligent Storage™

–

Hardware devices with a significant software component

–

This makes ADIC’s

devices easier to manage, easier to integrate into a complex,

multi-protocol networking environment, and more reliable for large-scale data

storage in an enterprise environment

–

Archiving and data management software, Storage Area Network (SAN)

management solutions, tape libraries with built-in controllers, remote monitoring,

diagnostics, and repair, and comprehensive, full-solution backup systems

•

The “Intelligent”

approach allows for faster backup in shorter backup windows, more

reliable data transfer, better compression performance, easier service and

diagnostics, superior scalability, and more options for customized management by IT

departments and storage administrators

•

This high-end model is expected to drive growth in the segment going forward

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

29

ADIC Entry-Level Products

•

ADIC offers an entry-level autoloader and an entry-level tape library, slotting above

Quantum’s single tape drives

–

FastStor

1 and 2 (based on height) offer 8-tape capacity with a single drive

–

Offers a weeks worth of reliable, unattended backup

–

FastStor

1 is the industry’s smallest LTO autoloader at only 1.75 vertical inches (1U)

–

The Scalar24 offers native capacity up to 9.6TB with 2 drives and 24 storage slots

–

Offers LTO or SDLT media, iSCSI

and Fibre

Channel (FC) connectivity

–

A robust library at an affordable price

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

30

ADIC Tape Libraries

•

ADIC’s

strongest product suite is its extensive selection of mid-range and high-end tape libraries

–

The Scalar i500, introduced at the end of 2005 and boasting up to 323TB of storage, has

become the fastest ADIC Library to reach 2,000 units sold, in only five months

–

Innovative

solutions,

including

iPlatform

architecture

and

iLayer

server

management,

help

to

reduce service calls by 50% and issue resolution time by 30%

–

Libraries have “Capacity-On-Demand”, with the Scalar i2000 enterprise-class device

expandable from 100 slots to nearly 3,500, with 2,800TB of maximum storage

–

The Scalar 10K is the first Storage Area Network (SAN) enabled library for consolidated

enterprise backup and archiving

–

Boasts up to 324 drives and 13,884 cartridges with 11,107 TB of maximum capacity

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

31

ADIC Disk-Based Backup

•

From its acquisition of PathLight

Technology, ADIC offers a mid-range and enterprise-class disk

backup system

–

Disk-based replication offers a secure, rapid, and reliable form of backup, adding additional

redundancy to storage

–

Difficult-to-backup data, and more critical data is backed up to disk, then automatically

transferred to tape

•

The disk writes quicker and the data is maintained with more certainty

ADIC’s

Pathlight

VX

650

delivers

premium protection for your

organization’s most difficult-to-

backup data. In this example, email

and database information is backed

up to disk, while tapes are created

automatically in one library partition

for disaster recovery and retention.

File and print server data is backed

up directly to tape using a separate

partition in the same library.

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

32

ADIC SAN Appliances

•

SAN Devices work as a hardware front for a storage network, linking dissimilar operating

systems and protocols work together in a unified network

–

Dynamically maps diskless servers to disk volumes and providing access security

–

IT architects use the SNC 5000 to combine heterogeneous devices into a single, centrally

managed environment in order to obtain the highest possible value and utility from their

data center resources

Test results demonstrate significant write performance increases

for library configurations that connect tape drives to a switched

fabric

through

an

ADIC®

Storage

Networking

Library

controller

in comparison to similar drives connected directly to the fabric.

Typical enterprise-scale configurations show a 19%

throughput improvement

for controller-connected units.

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

33

ADIC Software Solutions

•

Data Management Software

–

StorNext

helps customers store data at a lower overall cost and access that data faster through

workflow management and intelligent archiving

–

Creates shared pools of digital assets, including media content and analytical data, so that critical

files can be processed faster

–

It

also

consolidates

data

on

Xserve

RAID

systems,

and

provides

a

common

interface

to

Windows,

Linux,

UNIX,

and

Apple

Xsan

systems

to

move

data

more

easily

Xsan

and

StorNext

FX

clients

deliver

shared

storage access down to the file level for multiple

hosts, eliminating the need for storage

provisioning.

StorNext

provides

high

speed,

shared

workflow and high capacity, multi-tier

archives for images, rich media, broadcast

content, analytic data sets, and other digital

assets.

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

34

ADIC Software Solutions

•

Archiving Software

–

AMASS,

stored

on

a

UNIX

server,

acts

as

a

virtual

front

for

tape

libraries

and

optical

storage

libraries

–

Transforms “off-line”

storage (automated backup) into direct-access, mass-storage devices

–

Effectively presents a group of storage devices as one device, and allows the user to access

it to retrieve or store files as they would a standard magnetic disk

AMASS provides transparent

access to data on disk and

library storage. With its buffer

cache, AMASS allows

gigabytes of disk to support

files which are terabytes in

size.

©2006 Quantum Corporation. Forward-looking information is based upon multiple assumptions and uncertainties, does

not necessarily represent the company's outlook and is for planning purposes only.

35

ADIC Services

•

Your

best

line

of

defense

in

protecting

your

organization’s

mission-critical

data

is

our

iSurety™

service

approach

featuring

our

bi-directional

iLink™

remote

diagnostics

technology—an

industry

first

that

extends

diagnostics

into

the

broader

storage

environment.

With

iLink,

ADIC’s

remote

diagnostics

tool,

we can resolve some issues before a failure or data loss even occurs.

And, with built-in intelligence, your storage system

needs fewer components, is less complicated—so you’ll

spend less time managing it. We are dedicated to

helping you minimize downtime, increase productivity,

and resolve potential problems before they impact your

backup and your data—wherever the root cause of

the issue may occur.