Globally Unique Identifier (GUID), an alphanumeric identifier used in RealOne Player. Some content providers uses GUIDs to determine eligibility to access content that may be restricted to authorized viewers. GUIDs are not necessary to view RealOne Premium content such as RealOne Radio.
The GUID is disabled by default and is only enabled if you turn on the feature in Preferences. A GUID is randomly generated by the RealOne Player during installation. A GUID is used to indicate a unique installation of a product, and is found in many popular software applications.