well what happened to me needs an explanation!!! Please if someone can help me with this.. I moved a folder that included the raw files folder, jpeg and catalog folder to an external HD with all the changes I made . Next time I open lightroom ircat from external HD doesn't find the photos.. OK!! I go and right click the folder in window and update folder location! Disaster!!!! the progress bar started and to cut long story short, lost all changes but the most weird for me is that all original files lost their given filenames I gave plus that all (DELETED files from Disk and from TRUSH been) as well came back in the RAW folder!!!!!!! How this can happen when the ircat file is like 57 MB and I deleted myself the unwanted files from the trush as well. Finally I'm back in day first with all files like I imported them from my CF Card. I NEED to find a way to bring back all changes I made!!!! please help!!!!!