Abstract: The data in the error-prone channels may occur problems such as packet loss.The research and development of the media stream data coding which has the properties of real-time and better robustness has now become a hot area of research，multiple description coding is one of the coding methods to solve the problems.Frame is a set of redundant base，the data represented by frames have the strong error recovery and robustness.This paper introduces a new method used the frame-expansion of the MDSQ algorithm.Experiment shows that the algorithm is simple，effective and can be very good to improve the quality of data recovery.