Thanks mpl, I'm gonna take a look at this, but I'm afraid it's way out of my league :) Right now, I'm using a trick : BetterTouchTool takes care of the "renaming" part of the job and the script I'm working on takes it from there. It works like a charm ! But I'd like to share my script with everyone so I must find a work around which uses "script only"... So now that I've got the right direction, let's get to work :)