If you open multiple images in Camera Raw, there is a panel on left that allows you to select images and rate them 0 - 5 stars. However if you only open one image there is no way to set rating. This is bad from work flow process that uses ratings on files. It means that after examining and editing image I have to close it, then set rating in Bridge, then reopen it. I agree there is no need to show side panel for one image, but there is plenty of room under image to have those 5 little stars.