I moved photos to an external drive within lightroom according to an Adobe video I watched. Then I imported (add but keep on external drive) them to a new computer with the same lightroom 5 software. I cannot see the previous edits that I did on the older computer. I moved the photos from an older macbook and am working from the external drive on the newer macbook. On the older computer, I tried to find the files that have the edits and did not find them. Not sure what to look for. Read about .lrcat extension and XMP side car files but did not see that. Also I checked the old computer catalog and I did not check the "automatically write changes into XMP" box. But if I moved photos within lightroom - should that matter?