Sparks was formerly Vice President of
Electronics at Southern Steel and was President of Oron , Incorporated. He is a graduate of the University of Southern
California. Loi, MDI's Chairman, "Collier 's strong
background in the security sector and Peter's years of experience
raising capital and in public accounting will be a tremendous asset to
MDI's Board of Directors.

my people

com is breaking through to
the U.com.

Press Contact:
Natalie Svider / Cindy Coppola
Ruder Finn
310-882-4000
svidern@ruderfinn.

many comprehensive

S. In addition to Sudoku, notable games such as Pyramid,
Mahjongg Fortuna, Chess and Word Battle, among others, continue to attract new
players daily.

career highlights

portals, a thriving game community and the first online Sudoku
game played for money. Mr. Knepper served for ten years as Senior Vice
President and Chief Financial Officer of Ticketmaster Group, Inc. Knepper began his career with Price
Waterhouse + Co.

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With more than 40 million games played in the month of January , King.com's tournament-style games, unique content, and promotions
allow players of all skill levels to compete for entertainment and possible
monetary gain.

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Already a household name across Europe , King.
(Nasdaq:MDII) announced today that the size of MDI's board has been
increased from four to five members and J.

career games

Additionally,
Mr.

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S.com is the world's largest skill-gaming site,
boasting more than 40 different games and more than 1.
Sparks, age 47, has served as President and Chief Executive
Officer since July 30, 2004.

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com, the world's leading
skill-gaming site, experienced rapid growth in the opening months of 2006. with overwhelming popularity.

board many

Mr. For over 25 years, MDI has been
protecting clients across the globe by delivering the most innovative
and dependable integrated security management solutions available.

chess highlights

com is
extending its lead over competitors and further dominating the global
skill-gaming industry. Knepper was appointed to the Audit Committee of the board and will
serve as its Chairman. These statements
include a number of risks, uncertainties and other factors that could
cause actual results to differ materially, as discussed in the
Company's filings with the Securities and Exchange Commission.

people abstract

"With new
games being added regularly, a rapidly increasing number of registered players
and the excitement of cash prizes, King.3 million games played
every day. Knepper have been elected to
the Company's board of directors effective May 12, 2005.

career bios

highlights viewable

For
more information on MDI Security Systems including its solutions,
subsidiaries and partners, please visit www.

career hero

Skill-Gaming Giant Penetrates the United States With Record Numbers and
Unprecedented Growth

LOS ANGELES, King. King. Exclusive King.com

career 9

com partners include Yahoo! (US and Europe),
AOL (Europe), Lycos (Europe), MSN UK, T-Online and RTL .
Knepper, age 56, has held senior management positions with several
major corporations and has an extensive background in mergers and
acquisitions; raising capital in public and private transactions and
in public accounting.

board comprehensive

com

Forward-Looking and Cautionary Statements

Except for historical information and discussions contained
herein, certain statements included in this press release may
constitute "forward-looking statements" within the meaning of the
Private Securities Litigation Reform Act of 1995.

extensive included

com will undoubtedly continue to lead
the online skill-gaming market.

J. Collier Sparks and Peter B. Knepper Elected to MDI's Board of Directors

mdisecure.

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World's Largest Skill-Gaming Site King.com Surpasses 40 Million Games Played Per Month

de. A
Certified Public Accountant, Mr .

people my

"

Launched in 2004, King. Collier Sparks, CEO and
President of the Company, and Peter B. Sparks has been in the security
industry for over 24 years, with expertise in system integration ,
manufacturing and marketing.

people why

Contributing factors to the site's
domestic growth include cash prizes for play, carriage arrangements with
strong U. From January 1, 2004 to July 30 , 2004, he
served as the Senior Vice President of the Company and as President of
the Company's MDI business unit.
"We are extremely pleased to have these two gentlemen join our
Board," said Carlo R.

encyclopedia many

9 highlights

Business Editors

SAN ANTONIO----MDI, Inc. Mr.

highlights included

"We are excited about our accelerated growth and confident that our
excellent content will continue to attract customers in the United States and
globally," said Toby Rowland, Director and Co-Founder of King.

highlights why

com
coppolac@ruderfinn ."

About MDI

MDI is a recognized leader in delivering open integrated access
control and video security solutions.