Just wondering . . .
When I name a file (or folder or photo) the same as an existing file, I receive the message : Already exists. Would you like to replace?
When I select "replace", does this mean that the "old" file is immediately overwritten with the new, or is the "old" file simply moved/flagged to be overwritten when more space on the HD is required at a later time (i.e. similar to emptying the trash)?
