In the error-prone environments like wireless channels

bits error or/and packets loss is unavoidable. So error concealment is becoming an important and necessary technology for decoder. As most error concealment schemes are all based on the neighboring spatial information

the probability of that surrounding macroblocks are all lost must be decreased. Address this question

This paper studies the limitation of the raster scan order that adopted by tradition video data packeted algorithm

then considers scatter macroblocks and helix scan order. Combining these two schemes

a new video data packet algorithm is proposed. In this scheme

macroblocks are assigned to different packets following a special scatter pattern. Then they are packeted by helix scan order from the visual central area. Simulation results show this algorithm not only can make compressed video data more robust

but also make the video stream be scalable.