Abstract: Various systems and methods described above permit a user's content experience (e.g. music playing experience) to be monitored and for metadata describing this experience to be collected. This metadata can be dynamically updated as a user experiences media content and then used to impart to the user a personalized experience that is tailored to that specific user. A user's metadata can, in some instances, provided across a wide variety of computing devices on which the user may experience the media content, thus standardizing the user's personalized media experience. In addition, intelligent or “smart” playlists can be provided which, in some instances, can be dynamically and automatically updated to reflect current user experiences, thus providing a highly personalized and enjoyable content experience.

Abstract: Various systems and methods described above permit a user's content experience (e.g. music playing experience) to be monitored and for metadata describing this experience to be collected. This metadata can be dynamically updated as a user experiences media content and then used to impart to the user a personalized experience that is tailored to that specific user. A user's metadata can, in some instances, provided across a wide variety of computing devices on which the user may experience the media content, thus standardizing the user's personalized media experience. In addition, intelligent or “smart” playlists can be provided which, in some instances, can be dynamically and automatically updated to reflect current user experiences, thus providing a highly personalized and enjoyable content experience.

Abstract: Meta data associated with multiple pieces of content (e.g., songs, movies, other audio/video clips, etc.) stored on multiple pieces of media (e.g., CDs, DVDs, etc.) is maintained in a meta data store. The meta data store also includes meta data associated with other pieces of content stored elsewhere, such as songs stored in files on a local hard drive that have been ripped from a CD or DVD. These other pieces of content are associated with the content on the pieces of media, such as being ripped versions of the same song tracks. This association is maintained in the meta data store, so that whenever a change is made to meta data for one piece of content (e.g., for a track on a CD), then the meta data for the associated piece(s) is also changed (e.g., the ripped version stored in a file on the hard drive).

Abstract: A verification strategy is provided to verify proper multi-master replication of logical structures, such as objects, in a data processing system. The strategy is especially well adapted for use within the distributed environment. The strategy verifies that proper reconciliation of name spaces has occurred via multi-master replication. The strategy also verifies that the correct propagation of knowledge of changes to objects has occurred during replication.