There's also fmtowns.hcs64.com, which wasn't on the list because it wasn't finished until recently. There's also hcs64.com/gratia, which has general stuff.
Knurek uploaded most (all?) of the Dreamcast/Saturn stuff, and he has very slow upload speed. Also, at the time, he was doing this on a sort of experimental basis. Meaning, that he wasn't sure what kind of "punishment" HCS's site could withstand. So in an attempt to cut down on bandwidth usage (both for him and HCS's site), he uploaded them as MP3s.
At least, this is what I recall. If I'm mistaken, I request that someone come forward and provide the correct information. Since snakemeat is the one who (to my understanding) is largely responsible for the FM-Towns stuff, he decided to do it differently. Mouser X over and out.