I agree mod to midi is like lambs to the slaughter!!! most fones these days support mp3 direct or at least lower bitrate conversions etc. Been a while since i done owt with mobiles but psmplay can convert mp3 to fone specific tones like .mmf (samsung etc)
Hope that helps you Rogueraven.
However a lot of stuff on Exotica is in custom format Like Future composer and a load of others so u may have problems with anything that isn't .mod format so you will need a different player like http://www.deliplayer.com/