How Do I Manage Enrollments and Access for My iTunesU Album?
Once an iTunesU "private" course space has been created, all students who are enrolled in your course, as well as teaching assistants and co-instructors (as listed in UMEG), will have access to the media content you put there. In order to provide other individuals—for instance, course managers or colleagues—with access to your private iTunesU course space, you will manage access with the Manage Space tool. (See below for information about managing enrollment in an iTunesU "public" academic site.)
Note that the unique URL for your course space on the iTunesU academic server is listed in the URL: field. This is the link you will provide to students so they can access your content. You can add a link to it from your ELMS course content area, as well, so that students can access the iTunesU Academic album space from your course space. As the owner of the iTunesU Academic space, you can also click on this link in order to connect to the iTunesU academic server and start uploading and managing your content there.
The SIS Enrollments table shows you what access level individuals associated with your course will have to the iTunesU course space. By default, only the instructor has a Manager role and, so, the ability to upload files to the iTunesU server. See How Do I Change the iTunes Role of TAs or Students for instructions on how to enable others to upload files to your iTunesU course space.
In general, you will be able to ignore the Add SIS Enrollments portion of the Manage Access page. Its primary purpose is to enable you to provide access to your course space to members of another course. This could be handy if you teach a cross-listed course. You will create a space for one course and its sections and then, using the Add SIS Enrollments option, identify a second course and its sections and members who should be given access. 
You can return to the Manage Access page at any time to add (or delete) enrollments. Now you are ready to Upload and Manage content in your iTunesU academic course space.
Managing Membership Roles in a Public iTunes U Academic Site
Anyone with a University of Maryland Directory ID and password can access content in a public iTunesU academic site in a role of "user". Only the site owner has a role of "manager" to begin with. The enrollment management tools found under the Manage Space link for a "private" course space are not available to the owner of a "public" space. In order to provide specific individuals with site management authority, the site owner must send a request to learningonline@umd.edu and provide the iTunesU site ID and name, as well as the Directory IDs of those individuals who should also have a "manager" role in the space.
Continue to Change Roles of iTunesU Members.