This paper proposes an efficient algorithm LD/RPath (lowest delay/reliability path) for service-oriented reliable multimedia delivery in a pervasive environment. LD/RPath estimates the dynamic data volume on service nodes and links through reasonable data volume approximation. And the data splitting technique is imported to convert the node delay into the edge delay. In the mean time, the reliability of nodes is considered as a coefficient of delay, so that the multimedia delivery problem is transformed into a conventional shortest path problem. Simulation results prove that LD/RPath achieves good path selection performance while imposing low overhead to the system.