If you Google for "convert wmv to mov", you find a lot of products, some free, some paid, that will do the job. I dug past the first page of results, and found that ffmpeg will do the trick at the Terminal window, without having to fuss around with command line switches.
I have MacPorts installed on my Mac, so all I needed to do was open a Terminal window and type the following (I had to provide my password when prompted):
sudo port install ffmpeg
That installed ffmpeg and all its prerequisites, then I was able to convert the file with a simple command:
ffmpeg -i ignite7.wmv ignite7.mov
Five minutes later, it had converted the 276M .wmv file (Windows Media Video 8/Audio 9) to a 252M .mov (MPEG-4 Video and AAC audio).