I've bought the original copy of lion, but the disk broke in a recent move. Sadly I have had to redownload it, but they took yout the sound. Is there a way I can recover the soundfiles that were originally there?

I don't think that this game is available on this site, unless you mean The Lion King? The Lion King is ESA protected, but Abandonia does have music for the game available for download.
If you're talking about a different game, you could try checking the hotu (home of the underdogs) website. If they have the full version (i.e. with sound included) available I believe that you can download specific files from the game. So you could pick up just the sound files from there, or just download the whole thing again.

Otherwise I guess if you're really desperate for sound you might be stuck buying it again :tai:

Lion is a simulation game similar to Wolf.