I found a demo-version of the Speed of Light-Picture viewer for the ST and was totally blown away by its capabilities. It can display JPEGs and GIFs and convert them into ST-file formats. Unfortunately the Demo version does not allow the conversions to be saved or dithered in a more fancy manner.
Does anybody know whether this software is still supported so that I can register? If not - can anybody send me a registration code, to attain the full version capabilities?