GSF DecoderGameBoy Advance GSF Utility in Audio Players Category
GSF Decoder is a foobar2000 plugin which adds decoding support for Game Boy Advance Sound Format files (.GSF/.MINIGSF).
Author's website: http://www.foobar2000.org/components/view/foo_input_gsf
Operating System: foobar2000 1.1 or higher
Tried a few Mario Kart Advance minigsf files. None of them work with this program. It says "Invalid GSF". Guess those type of files won't work with this one.