Edited my post for more clarity. Why is it that when I import photos to Iphoto from finder, it saves a copy of each imported file in the modified folder of Iphoto in finder? Take note, I have not modified any file in Iphoto yet and yet all the files I imported have copies in the modified folder. Since, I would like to control file storage, I deselected the "copy files to Iphoto library folder". True enough, there are only thumbnail versions saved in the data and originals folder but the modified folder has full size copies of every file that I imported.