Bytes 0 to 7 are 'SUPREME!' -> Or, probably, other game name abbreviations
Bytes 8 to 39 are the builder name
Bytes 40 to 71 are the world name
Byte 72 is the number of levels in the world


===== Level Segment =====
2 bytes, for level dimensions?
32 bytes for name
Null-teminated string for song
Mysterious stuff I don't understand. Must be map layout, monsters and items...