I'm trying to make a slideshow from 500 large images (roughly 6000 x 6000 each) and LR seems to be choking. After 48 hours on a fairly speedy iMac, the Progress bar has moved only a small distance from the start position and at this point, doesn't seem to be progressing at all. This is my second attempt to create the MOV file (HD) and I'm curious if this is beyond the program's ability or if it is just taking a long time. I could break it up into several smaller chumks, but just looking for the most effective way to get this done. Any thoughts?