Decoder Dll Sonic 2.8.6.1418 Is There A Way To Convert .brstm Files To .mpg Audio Files?

Is there a way to convert .brstm files to .mpg audio files? - decoder dll sonic 2.8.6.1418

I have winamp and the plug-in in_cube.dll and so, and I can listen to the files. Brstm. However, I still hear "on the fly, so there is a way to do it." Mpeg Audio Files Are? Is an encoder or decoder or something? Is there another plug-in that put in Winamp?