END OF AN ERA, FRACTALFORUMS.COM IS CONTINUED ON FRACTALFORUMS.ORG

Yes, you can finish the video. You can't exactly resume the render, but the frames that are already rendered are not lost, and you can render the missing frames in a separate file. Make sure fractal extreme is "advanced". Go to file -> preferences, tick the box next to "advanced" if needed. To render the rest of the video, first open the incomplete zoom movie file and find the maximum zoom level that it has rendered. Then go to fractal extreme and open the file with the final location of your video. Make sure you use the exact same settings as your unfinished render. Again make a zoom movie, and when it asks from which zoom level to start rendering, fill in the maximum zoom level of the unfinished file. Important: be careful NOT to use the same file name as the incomplete render! Fractal extreme overwrites files without asking!! When the rendering is done, you will have two zoom video files. You can combine the output of the two in video editing software.

Since fractal extreme is rendering the movies zooming deeper and deeper, I guess 4/5 done means 9/10 of the time remains...?