BRSAR (File Format)
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The BRSAR (Binary Revolution Sound ARchive) format is used to store sound effects and some music. It is used in Mario Kart Wii, Super Smash Bros. Brawl, The Legend of Zelda: Skyward Sword and other games. An index list of the known values of the revo_kart.brsar file used in Mario Kart Wii can be found here.
File Header
The file begins with a header of size 0x40 bytes.
| Offset | Type | Description |
|---|---|---|
| 0x00 | String | File magic. RSAR in ASCII. |
| 0x04 | UInt16 | Byte order mark (BOM): The value is always 0xFEFF. If value 0xFFFE is read, then the false endian is used. Mario Kart Wii uses nearly always big endian (bytes 0xFE,0xFF). |
| 0x06 | UInt16 | Version of the file format. "revo_kart.brsar" uses 01 04. "HomeButtonSe.brsar" (used for the Home Menu) uses 01 01. |
| 0x08 | UInt32 | Length of the file. |
| 0x0C | UInt16 | Length of the header (always 0x40). |
| 0x0E | UInt16 | Number of sections. |
| 0x10 | UInt32 | Offset to the SYMB section. |
| 0x14 | UInt32 | Size of the SYMB section. |
| 0x18 | UInt32 | Offset to the INFO section. |
| 0x1C | UInt32 | Size of the INFO section. |
| 0x20 | UInt32 | Offset to the FILE section. |
| 0x24 | UInt32 | Size of the FILE section. |
| 0x28 | Byte[24] | Padding. |
| 0x40 | End of header | |
Sections
Unless otherwise noted, offsets in each section are relative to the start of the section block.
SYMB
The SYMB section consists of an FST-like data structure. It contains 3 header-less subsections.
| Offset | Type | Description |
|---|---|---|
| 0x00 | String | Section magic. SYMB in ASCII. |
| 0x04 | UInt32 | Size of the SYMB section. |
| 0x08 | UInt32 | Unknown. |
| 0x0C | UInt32 | Number of entries in the SYMB table. |
| 0x10 | End of header | |
Tools
The following tools can handle BRSAR files:
- BrawlBox, by Kryal & BlackJax
- BRSAR Extractor, by Atlas