web-based mp3 upload + bitrate converter?

web-based mp3 upload + bitrate converter?

Anyone ever heard of something like this?

I'm looking at expanding an in-game jukebox system for source-based games (CS:S, TF2, L4D, etc) and i have all of selecting and playing bits put together. but at the moment, if i want to add a song, i have to manually change the bitrate to soemthing a little less bandwidth heavy, and then upload via ftp

I know putting together an upload system wouldnt take much, but i was curious if any of you have heard of a javascript or other web script that will convert the uploaded mp3 to a lower, user-specified bitrate.

pipedreams, i know, but i look forward to any of your responses..