Converting .caf files to MP3 or FLV

Hi,

Does anybody has done any dynamic audio conversion from .caf files to mp3 or flv format? Basically we have an Iphone app that is recording audio and it saves the data in a SQL Server Database but we want to share this audio in a website. The website need to be able to play the audio in Flash. Does this make sense? I've seen some libraries out there but the Services and Environment are running on Windows so the conversion may be need to be on that environment.

Thanks,