Hello! I just edited down a seven hour stream to 3 minutes of footage. I added different music and various captions to this video, and with lots of effort finally finished. MM crashed several times during the editing (i'm assuming due to the large video file) and now that i have taken it all out it works a little better. I am able to get the entire thing to load after startup with no errors. When i go to save, however, The entire video that had footage taken from the 7 hour stream is corrupt. how do i fix this problem without 4-5 more hours of suffering through crashes?