FreeFileSync Forum

Okay, I think I may understand the mirror. If I have deleted some folders out
of the original file and the backup folder still has it in it, the file will
be deleted in the mirror, but in the copy it will still be left alone if
nothing is to be added. Right?

Is it better to go with file size and date or file content?

Is one better than the other? I mean, would copy not be better than mirror? I
am new to this and learning so thanks for your help.