audio-convert-mod, like fwbackups, has now moved to a public git repository at GitHub! You can have a look at the GitHub project page here.
Updates to audio-convert-mod and fwbackups are coming soon, as 1.43.3 is nearing stability and audio-convert-mod will be released with a simpler interface, two new features and a more robust, pure-python metadata reading/writing system using Mutagen.