I do work for a varity of photographers, most often I do it from my office which is Windows based and most of my clients are using Mac and that all works fine. I take their raw files do my edits on them, provide them back their raw files with the side car + plus I do further work and give this to them in TIFF, JPEG etc...
However, I have one guy who is still on a Mac G5, most of his work is on external disks, i think and CS3, and I have nothing but problems sharing his raw files. (I am on CS5, win 7).
Has anyone had any experiences with this?