Thank you David and Adam. I think the problem is that I did the time lapses in the timeline by changing the speed of a very long clip. I’m still having trouble however, now that I reformatted my hard drive, dragging the project over from the other hard drive. It still will say that it’s going to take 12 hrs, and then when I check it the next day, it says ‘error -36’ and only half of the material is copied.