The musical numbers, with forty tunes from the game and one remix of " I Am Impact ", were released October 3, 1997 on Nintendo Ultra 64 Sound Format on May 9, 2005; it is one of the most downloaded releases at USF Central.
PSF initially stood only for " " PlayStation Sound Format " ", but with the addition of the PSF2, SSF ( Sega Saturn Sound Format ), DSF ( Dreamcast Sound Format ), USF ( Nintendo Ultra 64 Sound Format ), QSF ( Capcom Q-Sound Format ), GSF ( Game Boy Advance Sound Format ), and 2SF ( Nintendo DS Sound Format ) subformats, the more generic backronym " Portable Sound Format " was developed.