thanx a lot... that sounded exactly as what i wished in my mind will try this, of course modifying the bat script according to my needs and pathes well i think (correct me if i am wrong) that i can safely convert at least cr2 (who takes much room), poses and obj (geometrie) maybe ? or at least cr2, since i would not edit them often, and would i need to, i woudl unpack he one i'm working on and let it non compressed as long as i need to work on it :) sounds great idea many thanx