I know who the author of VGMtrans is, but I'm not allowed to say who it is. I will say that they've provided a reasonably significant amount of work to various xSF formats, but beyond that, I can't say. And no, I haven't seen them, or talked to them, in years.
And no, it's not open source, and I doubt it ever will be.... :( Mouser X over and out.
Its not worth those who know who the creator is arguing with those who dont, for anyone who may think it wise to do this. It will just result in a very long thread as seen previously here, where we will arrive at a solution, however that solution will be WRONG. And then UF will have fun making acronyms for ANUSFEST.