Blogs:   ::      ::      ::      ::      ::    [July 25, 200 MDI Security Systems Signs Business Agreement With PSA(R) Security Network; World's Largest Security Cooperative to Offer MDI Products to Its Nationwide Security Dealer Membership SAN ANTONIO --(Business Wire)-- July 25, 2005 -- MDI Inc. (NASDAQ:MDII), a recognized leader in delivering open integrated security control, alarm management and video security solutions, announced today that MDI Security Systems has entered into a product sales and promotion agreement with the PSA Security Network. Under the agreement, PSA will offer MDI security products to its dealer and integrator members through its nationwide purchasing network. With a growing membership base of over 285 dealer and integrator locations, the PSA Security Network is the world's largest electronic security coopera

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