bento4 source designed ISO

http://bento4.sourceforge.net/

supported format spec.
ISO/IEC 14496-14
ISO/IEC 14496-12 

 (14496-14 = 14496-12 + BIFS/OD )

at edit when compling to Release.
C:\Bento4-SRC-1-1-1-322\Build\Makefiles\Bootstrap.mak
AP4_BUILD_CONFIG = Debug > release

pure mp4 files

test.mp4

uuid.atom

for example
insert to atom at topLevel.
mp4edit --insert uuid:uuid.atom test.mp4 result_userdata.mp4