The PlayMemories Home software imports duplicate images to the computer.

All images recorded on a memory card or the internal memory of a camera is imported to the computer if you select Import All Files, under Import Media Files using PlayMemories Home™ software. If you have already imported some images to the computer, you can end up having more than one copy of an image. Instead, select Import New Files to import only new images. You can also choose Select Files to Import to select specific images to import.