Hi,When I tried to download Sound Taxi, I ended up with a program called WMAConvert instead. It does a nice job converting just about any audio content on your PC to WAV, MP3 or AAC, and it's pretty fast. The AAC files won't play on my iPod if I transfer them with Rockbox, but they will if transferred with iTunes. If you're not using an iPod, this isn't an issue. You have to use your mouse cursor quite a bit, but it's very doable.
Cheers, Anna