Dear All, I apologize for the late update. Last week, we rewrote document for applying the discussion in the presentation on Mon. and the talk on Thur. . Also we start to write the synchronization for the situation that multiple clients write a same file at the same time. Still we are discussing and modifing the document. Sincerely, Jongmin -- Jongmin Gim Post-Doctoral Research Associate Dept. of Elecrical and Computer Enginerring Texas A&M University 333B Wisenbaker College Station, TX 77843-3259 Phone: 979-587-8311