The Getting Started eBook will not be installed if you install Adobe Digital Editions 2.0 as a standard user (non-admin user). You'll have to download the book and manually add it to the library of Digital Editions.
Adobe Digital Editions will not turn to the next page automatically in the NVDA Say All mode. NVDA only reads the current page until the user changes the page.
When using Mac OS X's VoiceOver screen reader (for accessibility), press Ctrl+Option+W to read the contents of dialogs.
When using Mac OS X's VoiceOver screen reader (for accessibility), Digital Editions will not support navigate and read by paragraph, line, word, or character.
If you have a prior version of Adobe Digital Editions installed (i.e., version 1.7 or version 1.8 preview from Adobe labs) along with Adobe Digital Editions 2.0, uninstalling one of them will de-associate the EPUB and ASCM file types with the application. You’ll then need to manually associate file types (see your operating system’s instructions for associating file types).
If you unplug a device while it is in the process of authorizing, ADE may report the device is authorized when it isn’t. After restarting ADE, it will show the correct authorization state of the device.
Digital Editions will not support embedded audio and video (such as H.264 streaming, MP3, or FLV).
Digital Editions will not support text rendering for complex script and right-to-left languages (such as Arabic, or Hebrew).
Extremely large images (greater than 50MB) can cause sluggish behavior in the application.
Some advanced rendering features (such as knockout, overprint, and non-separable blend modes) are not supported.
When Adobe Digital Editions returns an error message W_ADEPT_CORE_LOAN_NOT_ONRECORD, it means no record for the book loan is found on this machine, which most likely means you are attempting to open a borrowed book that was previously expired or returned.
Adding *.ACSM files into library with *.EPUB/*.PDF files simultaneously on Mac OS X is not recommended. Some*.PDF/ *.EPUB books may not be added in this case.