[Mp4-tech] MP4 UserDataAtom

[ranjeet gupta]

Dear All 
I need to retrieve user defined information from the mp4 files, like 
movie album, movie title, movie author, copyright.  Now these informations should be available under user data atom, under the container of movie atom. This is what i also find in the MP4 file format, But the things goes more complex as there is no description 
of the atom inside the user data atom, 
While analysing the raw MP4 file, I am also not able to conclude, 
any thing, So any one has the idea on the format of user data atom structure.
Thanks In Advance
Ranjeet
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