On the basis of the emerging peer-to-peer structure and the characteristic of user's behaviors, this paper proposes a scalable video delivery scheme, named P2PVD, for large scale video-on-demand application. In P2PVD, two types of orders are permitted: reserved and urgent orders. Reserved orders are encouraged with a lower price policy to smooth the network traffic and the server load. A delay-aware dynamic parallel transmission in the requesting peer is introduced to serve the reserved and

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... nt orders. The supplying peer is carefully designed based on three priority rules to increase the capacity of P2PVD. Experimental results indicate that P2PVD is scalable.