I'm assuming these are both NES games (rygar is, so

), and so I suggest you pick the nsf and a plugin of your choice (or my choice, notsofatso) and record them yourself with nullsoft diskwriter. If you use winamp that is. Just change your output prefs to diskwriter instead of direct sound or whatever you have there now.
And so you will get wavs.
<P ID="signature"><marquee direction=left scrollamount=2><img src=http://personal.inet.fi/musiikki/mika/fatso.gif></marquee>
</P>