I'm already backing up my iPhone, but I have several USB drives that I'd like to backup in the same way. It would be great to be able to add additional sources to backup them.
Hi, CopyTrans Studio will not create duplicate if you backup your device in the same folder. However, it will not be the case if you backup in two or more different folders. You can use the setting "Only backup photos taken from XXX to XXX" to avoid duplicates.