Great news. I have all my raw images in Aperture libraries on 1 hard disk and in folders on another hard disk. I currently use raw power on my new images not supported in Aperture but would like to use it on my old images as well in future as I am getting the spinning beach ball to often. Hopefully I will purchase a new computer next year but disappointed that Apple have made the new Mac Pro to expensive for amateur retired photographers like me who have always used tower Mac Pro’s.