That's way to complicated, and it will also result in a loss of music quality. I can think of three easier possibilities:
1) The Lyra mounts as a drive, in which case he just has to copy the MP3 files over, or
2) Windows Media Player can sync the music on the Lyra, in which case you can just let WMP copy the MP3 over, or
3) The Lyra ships with its own custom software to copy the MP3 files over.
In any case, burning, then ripping, is kind of pointless since MP3 is a cross platform format.
Chris