SC2replay header

The MPQ file format specification specifies that there is sometime an optional 'shunt' block which is used to store user data for a particular MPQ file. In the case of sc2 replays, this user data block contains many information concerning the version of the replay we are parsing. (source: http://wiki.devklog.net/index.php?title=The_MoPaQ_Archive_Format#User_Data)

This document requires heavy research. An original source was found here, however the format has since changed. The table below should be correct for the more recent replay format, however the Version and Build numbers have not been determined yet.

Location	Meaning	Expected Value
0x00 - 0x03	MPQ Header	"MPQ" + 0x1B
0x04 - 0x07	Maximum Size of User Data	512
0x08 - 0x0B	Offset of the MPQ header	1024
0x0C - 0x0F	Size of User Data Header	60
0x10 - 0x14	?	Unknown - An example is hex "05 08 00 02 2c"
0x15 - 0x27		"Starcraft II replay"