Source	Header	Description
mp3.c		Main program
	common.h	definitions shared between different parts of the program
sta013.c	sta013.h	support of STA013 MP3-Decoder chip
buf.c	buf.h	support for the circular buffer in external SRAM
iso9660.c	iso9660.h	support for ISO 9660 CD-ROM filesystem
ata.c	ata.h	support for ATA interface

Perl Scripts

File	Description
asmfmt.pl	STA config file -> assembly code
bin_to_asm.pl	binary data -> assembly code
bin_to_c.pl	binary data -> C code
binfmt.pl	STA config file -> .BIN format
hexfmt.pl	STA binary data -> Intel .HEX format
mp3_to_hex.pl	binary data -> Intel .HEX format

Note: Use these at your own risk. Only a few actually work as they should.
Credit: Some scripts taken from http://www.pjrc.com/tech/mp3/sta013.html

Other Files

File	Description
sta013.txt	STA013 Configuration File (supplied by company, modified)
sta013.hex	STA013 Configuration Data EEPROM Image (generated using scripts)