befb8e68_eBook_Options_for_Libraries__Source
[Name] Unlimited Content License Model [Ownership] Yes [DRM-free] Yes [Copyright/License] AADL Unlimited Use, Fixed Term Content License [Distribution] Library-hosted, open source software (SOPAC/Drupal) [Format] Any, including streaming or downloaded audio and video, plus PDF and ePub [Cost] Negotiated with rightsholder [Examples] Magnatune at Ann Arbor District Public Library [Source] 
Rightsholder is paid to provide files, which are accessed without limits or returns by authenticated cardholders
eBook Options for Libraries
Source