To find the ringtone you are looking for, try searching the internet using specific terms, e.g. "britney.mid" for the polyphonic ringtone, "greenday.mp3" for the Truetone, or "crazyfrog.3gp" for the video ringtone. Also, include words such as "free" or "ringtone" to narrow your search. Google is the preffered search engine.