Patent ID: 8001612

Claim:
An apparatus-implemented method of distributing a digital-work to a plurality of user-devices that use different formats, the method comprising: storing a definition of usage-rights for said digital-work in one or more memories; wherein said definition of usage-rights authorizes a plurality of different formats of a digital-work for use by a user, at a plurality of different user-devices; wherein one user-device uses a different format from another user-device; wherein said usage-rights for said digital-work are usable with a plurality of experience-providers; determining when the user who is authorized to utilize said usage-rights is present at one of the user-devices; selecting, automatically by a processor, a format of the digital-work, from a plurality of available formats, which is most appropriate for the user-device where the user is present; sending onto a network to said user-device: the selected format of said digital-work that is compatible with said user-device and an authorization to utilize the selected format of the digital-work; and whereby said digital-work is automatically available at any of a plurality of user-devices that said authorized user is present at.