marcosv7 wrote:
Because my Mac HD was so completely full I had toI drag and drop mainly image files into an external hard drive. I looked in my trash(Mac) and I did notice a LR folder I had created so I reintroduced the LR file into my external hard drive and tried to open the files but I was not able to do so. The files had number designations so I could not determine what they contained but as I wrote I could not open them. There were many back ups....
Do you have your original catalog with the Collection Sets? What happened to your original catalog file with the collections sets? Where is it now?
What were these files in the folder in the Trash? Was there a file whose name ended with .LRCAT in the trash?
If you just dragged files to the external HD, this should not result in files appearing in the trash, unless there are other steps you haven't told us.