A continuously variable power-branched transmission for a motor vehicle, including an input shaft, a variable speed drive unit having pairs of conical disks and a continuously variable transmission ratio, a gear system, and an output shaft. Pursuant to some embodiments, the video source data is packaged into a first segmented video stream and a second segmented video stream, and a first stream manifest file for the first segmented video stream and a second stream manifest file for the second segmented video stream are generated. Modifying the shape in this manner makes it possible to provide the ever higher required level of vehicle body impact resistance at the same time that it reduces the weight of the vehicle body and lowers the cost. The motor may be controlled by a control program that adjusts the rotation rate of the circular race to modify the shape of the resistance curve.