An MPEG data receiving apparatus adapted to interact with a MPEG data
providing apparatus. A storage unit stores scene description information
(SDI) from a received MPEG stream and a command recognition unit outputs
node identification information based on user-selected objects and scene
correction commands input by the user. A correcting unit searches for SDI
stored in the storage unit corresponding to the scene correction commands
and selectively updates the SDI on the object or requests the MPEG stream
providing apparatus to update the SDI corresponding to the scene
correction commands according to a result of determining whether the SDI
corresponding to the scene correction commands exists in the storage
unit. Accordingly, interaction between the MPEG data receiving apparatus
and the MPEG data providing apparatus is enabled. Effective results are
obtainable under a narrow bandwidth environment by reducing an amount of
SDI transmitted from the providing apparatus.