Curious as I discover DTpro

I have been learning to use DTpro. In the process, I have decided to delete items and redo my dtabase by using index. I noticed in my trash several folders worth of items, yet some were not in a folder but separate. I checked the HD and saw they were still there.

I assume for some reason they were duplicates perhaps imported into DT, yet I can not be positive. In any case I deleted those items.

Can someone explain this?

Cletus, if you had copied PDFs, for example, using the Import mode, they were put into the trash when you deleted them. It was OK to empty the trash.