I would appreciate advice backing up photos in Photoshop Lightroom for Mac. When I back up the catalogue onto a removable disc, it appears to only back up catalogue details, not the actual photos themselves. I get a folder called 'Lightroom 2 catalogue.Ircat' on the removable drive each time I back up. To get the photos backed up, I then export the catalogue to the external drive as well, by selecting 'all photographs' from the catalogue and using the export command. Is this the right way of doing it? If I lost a hard drive and had to back up, would this give me all my settings and keywords back? Seems like a dumb question but I'd appreciate the confirmation. Setting up keywords on thousands of photos takes so long I would hate to have to do it again.