Often I stumble upon obscure and old raster formats that I need to save for future needs. FME has come a long way in supporting raster formats but there's still many formats that FME doesn't yet support. For these cases I use ImageMagick https://imagemagick.org/ often called from FME with a SystemCaller transformer.
Now an idea has grown. Could there be a possibility that Safe, in some way, could incorporate ImageMagick in to FME to get native support for all the formats that the ImageMagick software supports?
ImageMagick is distributed under a derived Apache 2.0 license so perhaps there's an opening to a partnership there?