I was able to convert it to Apple TV. That played fine in Quicktime and VLC but when I imported it to FCP7 It was the wrong aspect ratio and the sound had Donal Duck quacking underneath the interview.
I used iSkysoft Video Converter, which will work if i want to pay $35 for the full version. Ecamm, which makes Call Recorder, suggests using Compressor. When I tried that I got “One or more jobs do not have a source media file assigned.”