Hello all, I just realized that I am having all of the fun with approximately 3,000 infrared images. My boss should be able to share in the joy of eyeballing and annotating each and every one of these things ;) It's fairly safe: he's a good guy, and a good enough scientist to know that what I am doing really has to be repeated. Options include: (1) fix all of the file name manipulation to be Windows-friendly[*]; (2) create a Linux box he can use for the task; (3) let him run it on his mac at home. Will my Linux file names make sense to his mac? I never paid any attention to Microsoft's functions to get the Windows drive, and just hard-coded c: all over creation. On Linux, I have been coding a lot of references to things like /home/wks/2008/IR-data. Can his mac understand that? What would be required? Create an account for "me" to he would have the password (his computer, not my data, so that should be fine) and have him log in that way to run it? Bill [*] let's pass on that one