Abstract: A reproducing device is provided. The reproducing device includes: a driver configured to load a recording medium in response to the recording medium being attached, wherein the recording medium records video data and additional information encoded according to a High Efficiency Video Coding (HEVC) method; a data processor configured to process the video data; a controller configured to provide a service corresponding to the additional information. The service includes at least one of a trick play service, an interested region enlargement service, and an object adjusting service.

Abstract: An asymmetric rolling method for rolling a rolling material by using at least one pair of working rolls comprises rolls rotating at the same linear velocity and having different diameters. An asymmetric rolling apparatus may comprise a first roll contacting a first surface of a rolling material, a second roll having a diameter different from that of the first roll and contacting a second surface of the rolling material opposite to the first surface, and a power providing unit for providing power to each of the first and second rolls to adjust a ratio between angular velocities of the first and second rolls.