[Mp4-tech] DRM MPEG-4

[sunx]

In the MPEG-4 System, you can customize your own atoms by putting them as
subtree of the atom "uuid". "uuid" is the only atoms allowing you to
customize. So you can put your own DRM info under the "uuid" atom. Note
that there may be multiple "uuid" atoms in one mp4 file. Also, you can put
some encrypted keys there, e.g., the UUID/class id there to make other
MPEG-4 decoder cannot decode your own DRM info. It depends how you utilize
them. If you only want to do it in the m4v file, then the only possibility
is to use the "userdata" segment. Check out the spec for more details.
On Fri, 24 Oct 2003, Jechiam Gural wrote:
> Hello,
>
> Does someone have a references available to DRM solutions targeting
> MPEG-4,  i.e. experience with implementation of a vendor, cost of the
> software, ( perhaps open source),  example project etc?
>
> Thanks,
>
> Gural
>
>
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