MoKa

I had been working in AF Photo, cropping and colour adjusting over 200 images. I saved an updated AF file and also exported each as a JPEG, making sure each image process was complete and renamed the files before moving on to the next one. I was working over a couple of weeks so it's not like I overloaded it or anything. I had just finished my very last image export and my mac went into the spinning pizza of doom mode and eventually crashed. I rebooted and wasn't given a prompt to restore any lost files. Everything had been saved in a folder on my desktop. In opening AF Photo the last 5 images I had worked on were there so I thought all was fine, until I opened my fixed folder to only find those last 5 images in af format and 45 fixed images in both formats from the very first days work. I have no idea how or why all the others in-between would suddenly disappear. Does anyone have any ideas? At the moment I think I'm just going to have to do back and redo all the lost ones. Thanks, Mo