I use the built in support for winamp. Press, control+P and you will see a menu, one choise is PLugins. there is a subcategory called output. If you click one on that it will give you four options. The third is the diskwriter utility. WHen you double click this, you are given a choice of directories. Select a premade folder and then when you hit play, it will expand them out into standard audio. Toss them into Easy creator and you should be set... (You need to have a special player if you want to play mp3 files) MP3 isn't simply compressed audio, so that is why much of the time it must be treated like data.
Oh yeah, be sure you put everything back in WinAmp to play regular lwhen you are done. and yes, it will have two copies of your song, But if you want, you can toss the premade fold out and your are done with it....
(I leave mine there in my folders named things like "Car ride home", since I have nothing better to do with my gigs of emtpt space...)