This paper describes a distributed video streaming system using widely disparsed storages, in which each storage hosts send chunked video packets to single receiver through multipath network. By adding parity packets by forward error correction (FEC) along with source video data in each storage hosts, this system enables realtime video streamings even if there are unbalance between those hosts. In this paper, we introduce a model of this unbalance and its effect to the amount of needed packet sending, then discuss how to design redundancy rate in FEC. The result are shown to have a trade off among the range of balancing and the additional amount of sending packet needed for stable video streaming.