High Quality Content by WIKIPEDIA articles! Phase One Media Pro (formerly Microsoft Expression Media) is a commercial digital asset management cataloging program for Microsoft Windows and Mac OS X operating systems. It is the next version of iView MediaPro which Microsoft acquired in June 2006, and sold again in May 2010 to Phase One in Denmark. The software is aimed at professionals and photo enthusiasts who need a photo manager that makes it easier to manage photo and video assets. Especially very large high quality image files and libraries.