owing to the spatial and temporal error propagation caused by losses,we include MB refresh area not only slices allocated weak subchanel, but also their neighboring MBs.at an example of row by row slices show in Fig.4,there are slices 4 and 5 damaged which should be coded with MB intra refresh coding for the video restoration.in addition to these slices, surrounding MBs in slices 3 and 6 are also intra-coded to stop the error propagation But in the structure of slices using flexible MB ordering (FMO) in H.264, extention of MB