Help Converting .minigsf Files To .mp3

I downloaded a couple of GSF rips recently: Kirby & the Amazing Mirror and Kingdom Hearts: Chain of Memories. Kirby works great on Audio Overload (using a Mac here) but KH doesn’t play at all.

So I looked around and found a method to convert them with winamp. I booted into my Windows partition and started the process for Kirby and KH. The first thing I noticed was the quality. I compared the mp3s for Kirby & the Amazing Mirror, and they sound really muddled compare to the crisp quality I get when I play them in Audio Overload. Same goes for the KH files, although I have no way of knowing how crisp they’d sound with AO, since it crashes when I try to open them.

Any suggestions on how to make the quality better? As in, make it sound crisp like it does in Audio Overload?
I’ve uploaded two comparisons: the original file (http://leo.wetfish.net/Sounds/Main%20Menu%20(minigsf).mp3) and how they sound after being converted with Winamp (http://leo.wetfish.net/Sounds/Main%20Menu%20(winamp).mp3).

Well, playing that GSF in my Winamp sounds better than yours for some reason. What’s your method of converting to MP3? Does it sound okay when playing it but then after the conversion that it sounds worse? Walk me through each step of how you do it and maybe I can find what’s wrong.

what you have to do is play any format that can be played in winamp, then you can
use the winamp’s built in disk writer (search google for more info on this) and it can
convert to wav files, and from there it’s easy to convert to mp3 ;)\

the real audio format in the gba is not gsf, it’s something else, but of course
no one found a way to extract that. the only thing we have is something close.

if you want the best quality (or quality from the game itself), then you have
to rip them through VisualBoy Advance emulator and make sure you go in
the tools-audio section of the emu and you will see lot of sound channels selected
with a checkmark, you will have to remove some of them that interfere with
the original audio file (like SFX, etc) and then just hit the record audio in the
emu and thats it