Aren't all my photos supposed to be in the cloud? Why are there 4 files of photos on my computer? Two that are labeled "Mini iPhoto Library" and "Mini Photos Library" and 488GB and 498GB, respectively. I'm guessing the other two "iPhoto Library" and "Aperture Library" are legacy files and can be deleted with no effect to my system? What doesn't make sense though is that 488GB + 498GB would equal nearly a TB and Daisy Disk says I have 583GB total of photos on my HDD. So I'm confused how that's possible? I actually have the same confusion over my music. Isn't all my music in iTunes supposed to be stored in Apple's cloud? Why is there 442GB worth of music on my hard drive? Can anyone shed light into this? Much appreciated in advance!