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I have been trying for some time to complete the rendering of a movie that has about 1225 zooms at about 122,000 iterations.  The problem is unintended reboots of the computer which of course stops the rendering process.  The longest I have made it so far was about 7 days.   At that time about 4/5 of the frames had been redered but by that time each frame was taking several hours.  (my computer is a 3.4 GHZ with many bells and whistles)  Can the rendering be continued after an interruption and then the parts sewn together for playback?

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.

Thanks!  Any suggestions on a video editing program that I could use to do this - preferably cheap  :embarrass:

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

Microsoft movie maker is free to my knowledge