As there isn't any documentation on fst.bin, I have written one for those who want to know. The fst.bin file is divided into 2 parts, 1st is file entries & 2nd is filenames file entries each file entry is a 0xC segment (00) (filename offset 3Bytes) (offset>>2 4Bytes) (filesize 4Bytes) (01) (dir name offset 3Bytes) (parent entry # 4Bytes) (folder end entry 4Bytes) 1st byte indicate whether it is a file or a folder, 00 for files and 01 for folders 2nd - 4th bytes offset of the file/dir name from the start of the filenames segment (the starting address is mentioned below) 5th - 8th bytes for files: It is the same offset you can see in trucha signer, but divided by 4 (>>2) (I dont know how to calculate whether a file is on the 1st or 2nd layer as there are more offsets involved) for dirs: It is the entry # of the parent directory, the 1st (ROOT) entry is entry #0 so all 1st level dirs has the value of 0 on this location 9th - 12th bytes for files: It is simply the size of the file. for dirs: It is the entry # of the last entry under the directory (including sub dirs & sub dir files) ROOT entry the fst.bin starts with the ROOT entry, it is slightly different from other dir entries 01 | 00 00 00 | 00 00 00 00 | (Total number of entries 4Bytes) as the ROOT entry does not have a name nor a parent entry it always has the structure above therefore the filenames starts from: Total number of entries * 0xC filenames The filenames of each entry ends with a 0x00 paddings the fst.bin is padded with 0x00 to 4bytes multiple (the presentation could be much better if this forum support tables)
To anyone coming here, SleepyPrince uploaded a great ftb.bin app here: http://gbatemp.net/index.php?act=findpost&...amp;pid=1018609 If it doesn't run on your machine, you need to update Java to 1.6.0_04.
You should really add this to the wiibrew Wiki. People have done stuff like this for opening.bnr and _update.inf, too. Just make a new page for fst.bin with that information.
