Hi all I currently have all my photos saved across iPhoto, Aperture 3 & Lightroom 4. They are all saved on my iMac's HD. Is there a way to export all the photos into 1 file on an external drive but still have both iPhoto and Lightroom access the same folder? If not how do i export all the files off my iMac into a format that 1 of the programs can use? Hope that makes sense??? Thanks for all responses.