LEGO Stunt Rally RFH/RFD extraction

The game stores its files in a series of RFH/RFD files. RFHs contain the archive index; RFDs contain the raw data.

Some files are actually a 4-byte header followed by a raw DEFLATE stream. This should be decompressed upon extraction.

Extraction code can be found here (mirror).

RFH

This is simply a series of consecutive structs, each containing 20 bytes and a NULL-terminated C string.

stuntrally_index.bt

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typedef uint32 uint32_t;

typedef struct SRIndexEntry {
    uint32_t unk1;
    uint32_t unk2;
    uint32_t unk3;
    uint32_t size;
    uint32_t offset;
    string path;
} SRIndexEntry;

struct {
    LittleEndian();
    while(!FEof()) {
        SRIndexEntry index;
    }
} x;

Music

The game’s music is stored as DirectMusic SGP files. This is a sequenced format which can be opened in DirectMusic Producer 9.

File Info