I spent most of yesterday using the Photosweeper Lite app getting rid of extra photos. I had no room on my hard drive and got rid of 100 GB's of photos. The problem was that I sometimes had 500 plus of the same photo in Aperture. I am really not sure what was happening, but I needed to clean up all the extra photos I had. Anyway, I went into Aperture today and created a folder on my backup drive for photos that I did not need to streamline my photos and reduce the amount it takes up on my main hard drive. When I went to move the photos (drag and drop) over to the hard drive or onto my desktop, I am unable to move my older photos. How can I tell if the masters were in the iPhoto library I just deleted? Also, I can recover it from time machine, correct? Please let me know if you need more information.