Patent ID: 7386782

Claim:
A method of synchronizing data in a multimedia document which comprises at least first and second data files, the method comprising: storing data of a first type in the first data file and data of a second type in the second data file, wherein the data of the first type and the data of the second type are stored sequentially in a plurality of fields of the first data file and the second data file, respectively, and at least one event-related command, which identifies an event which is executed during reproduction of the multimedia document, is stored in a field of the first data file and the second data file, and inserting at least one synchronization command into the first data file and the second data file, wherein the at least one synchronization command is inserted before the at least one event-related command which is stored in the field of the first data file and the second data file and each synchronization command which is included in the first data file is repeated identically in the second data file of the multimedia document, designating one of the first data file and the second data file as a priority file, reading the first data file, and reading the second data file, wherein if the first data file is designated as the priority file and a synchronization command is encountered in the first data file prior to encountering a corresponding synchronization command in the second data file, reading the plurality of fields of the second data file in sequence without executing event related commands which are stored in the plurality of fields of the second data file, and wherein if the corresponding synchronization command is encountered in the second data file, execution of event related commands in the second data file resumes.