Abstract: A method of preparing MMS messages involves preparing a multimedia presentation on a computer using an industry-standard multimedia format; exporting a file containing said multimedia presentation in said industry-standard format; and processing said file to create an MMS message suitable for transmission over a mobile phone service.

Abstract: In a method of synchronizing first and second data streams, the first data stream acting as a reference stream, elements of the first data stream are displayed along a time line on a display device. Containers for elements of the second data stream are displayed on the display device alongside the elements of the first data stream. The containers are interactively displaced on the display device relative to the elements of the first data stream to align the containers with cue elements in the first data stream. Synchronization markers are generated for the aligned displayable elements relative to the first data stream.