MD4 (Quake)

MD4 (not to be confused with the MD4 cryptographic hash) is a 3-D modeling format introduced by id Software for later versions of Quake 3, succeeding the earlier MD3 format. It is a binary format using little endian numeric format.

Format description

 * Description of MD4 format
 * Readme file from source code

Links

 * Some discussions of the format