Cannot Edit Photos
I imported hundreds of photos from a DVD without problem. I can view and increase the view size of all photos but for 20% of them I cannot export them and cannot edit them. If is select to edit them the control gray out and if I attempt to export them the message is the photo cannot be found in spite of being visible and able to be increased to full size.
How do I fix this
MacBook Pro, OS X Yosemite (10.10)