What if you loose all your photos from last couple of years ?
If you still backup your photos on your DVD, there is an more elegant software that automaticaly syncronize your selected folders with an online account, making automatic backup of your photos.
You don’t have to worrie about what you didn’t backyup yet, you just have to copy your new photos on the selected folders (as many as you like) and the backup software will take care to upload the new photos without doing anything.