To improve performance I have the automatic save changes to files turned off in LR2.2. When I have images that have changed (perhaps added a keyword) in a directory, and do a synchronize, it doesn't appear that the changes are written to the files. Is this the intended behavior? I would have thought that "synchronizing" would completely synchronize the image in the catalog with the file(s) on disk. But, I just tried it by changing a keyword on an image, doing a synchronization, and the indicator that the Metadata files needed to be updated stayed after the synchronization.