BRSTM file
BRSTM files store sound data. They're used in Mario Kart Wii and possibly other games.
They contain an header, followed by a HEAD chunk and a ADPC chunk. All the data in those files are big-endian, except where mentioned.
BRSTM header
The header is 64 bytes long.
| Offset | Size | Description |
|---|---|---|
| 0x0000 | 4 | "RSTM" (0x5253544D) |
| 0x0004 | 4 | Magic (0xFEFF0100) |
| 0x0008 | 4 | Size of the whole file |