per FUN_0045adec
u32 fields big endian

12 bytes 	Project name
4 bytes 	Sub Model Name
4 bytes 	Checksum (see vum_checksum.py)
4 bytes 	Write Select (?)
4 bytes 	Write Type (ALL)
4 bytes 	Force write marker (FORC)
32 bytes 	Boot version
32 bytes 	Program Version
4 bytes 	Boot Size
4 bytes 	Program Size
4 bytes 	Kernel Size
4 bytes 	RFS size
16 bytes 	Date created (YYYYMMDDHHMMSS00)
32 bytes 	Key/placeholder