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Note that an opaque container object can have only one directory named "container" (where all the content files are stored). Inside the container directory there can one zip file containing files in any format..
Opaque container objects and the files they contain cannot be delivered using DRS delivery systems, such as FDS. Opaque container content can only be downloaded through Web Admin.
Accepted Formats
Files of any format can be deposited as part of an opaque container object.