Abstract: A multimedia digital data transmission device which may respond to a request message from a second segment of a second operational data stream in fast forward or rewind mode (trick mode), associated with a first data stream of a selected multimedia digital content transmitted from a client device (13) through a communications network (11) based on an internet protocol; in which the transmission device (12) comprises a data segmentation unit (16) which generates a second segment by means of a different coding or through extraction of a plurality of frames included in a specific number of first segments of the first data stream of a selected digital multimedia content, and in which the length of the second segment is equal to the length of a specific integer number of first segments.