In the iPhoto library are THREE copies of many images: one in Data, one in Originals, one in Modified. Can I trash the original? Can I trash Data? This is all taking up a lot of room. If i move a photo to the trash within iPhoto, it doesn't delete from the Original, Data, etc folders... Next problem: Within iPhoto, some of the images show up only as a thumbnail, and others only as the main image. what does this mean? yours in frustration, lucy k.