I followed the NBR2MP4 converter procedure on the WebEx site and also reviewed the step-by step instructions at https://askubuntu.com/a/362719/219130 but no matter what I do, it just doesn't work (i.e. doesn't output any MP4 file).
From within the nbr2_mp4 directory:
$ ./nbr2mp4 my_file.arf /tmp/ 5 Converting /home/username/nbr2_mp4/my_file.arf to /tmp/my_file.mp4 Retrieving video data, fps=5...
I tried many different options with or without DEST and FPS, with and without sudo, and whatever I do, it just doesn't output any file, ever.
On the WebEx site it says
Linux OS: 32-bit Ubuntu 8.10/9.04 so it might simply be that the scripts are incompatible with 13.10, but I'd rather know if others have the same issue too?