Abstract: An apparatus for synchronizing data to a content item, the apparatus comprising: a data receiver, configured to receive the data and the content item, a data segment presenter, associated with the data receiver, configured to present a plurality of sequential segments of the received data and a graphical object associated with each respective one of the segments to a user, a content player, associated with the data receiver, configured to play at least a part of the content item to the user, and a time map definer, associated with the data segment presenter, operable by the user for defining a time mapping of the segments to the content item, by visually modifying a proportion among the objects simultaneously to the playing.