Support for ECHOBEA3.MOD and KINGDOM.MOD has been added for the next release (simply a matter of adding recognition of their particular ids
).
But SONG3.MOD is not supported because it's a 15 sample MOD file, which do not have any identification for XMPlay to check. If you really want to be able to play it, you'll have to load it into a tracker, and save it back out as a standard 31 sample MOD file.