Abstract: A database system having a sequential log that is shared by multiple computer systems is described. The database system receives data records generated by multiple computer systems, and stores such data records in the sequential log. The database system periodically reorganizes the data records in the sequential log such that the data records are stored in sequential physical memory locations of the sequential log by order of their creation.

Abstract: A system and method for providing on demand access to information related to a movie while the movie is being presented to a user, where the movie was generated from the movie related information, are described. The system operates by presenting the movie to the user, and then receiving from the user a query pertaining to the movie. The system determines a frame of the movie that was being presented to the user when the user issued the query (the system may extract this information from the query, or may extract this information from the movie itself). The system identifies, as specified by the query, portions of the movie related information relating to the frame, and retrieves those portions of the movie related information. These retrieved portions of said movie related information are presented to the user. Also discussed is a manager to enable users to create personalized versions of movies, and personalized collections of items.