As of May 2008 digecor stated this....all following press releases were void of market share data as far as I could tell.

"Lynch's appointment as VP of Sales for the Americas comes at an opportune time for digEcor. "In the past few weeks, other portable providers have asserted that digEcor has fallen from the lead. Our market analysis and research shows their assertions to be false. The crucial factor in determining market share is the aggregate number of players in service. Due to our time in the industry, repeat customers, and new sales, digEcor has more players flying on aircraft today than anyone else in the business."

Supporting Lynch's affirmation of market leadership is digEcor's lengthy client list. Original customer Alaska Airlines is currently flying digEplayer 5500s on more than 50 MD-80s. Also among the sizable, international client list flying either 5500s or XTs is Hawaiian Airlines, KLM, Garuda Indonesia Airline, Kenya Airways, SilkAir, Martinair, and France based carrier L'Avion."

http://www.digecor.com/press_releases1.html