DOS EXE Format Information about the DOS EXE Format (also known as the MZ format). http://www.delorie.com/djgpp/doc/exe/

Portable Executable and Common Object File Format Specification The format specification for Portable Executable (PE) and Common Object File Format (COFF). (Microsoft) http://msdn.microsoft.com/library/specs/msdn_pecoff.htm

Unofficial LMP Format Description An unofficial source of technical information about LMP data format used to record games for Doom, Doom II, Heretic, Hexen, and Strife. http://www.planetquake.com/demospecs/lmp/