The proliferation of mobile computers and wireless networks requires the design of future distributed real-time applications to recognize and deal with the signi cant asymmetry between downstream and upstream communication capacities, and the signi cant disparity between server and client storage capacities. Recent research work proposed the use of Broadcast Disks as a scalable mechanism to deal with this problem. In this paper, we propose a new broadcast disks protocol, based on our Adaptive Information Dispersal Algorithm (AIDA). Our protocol is di erent from previous broadcast disks protocols in that it improves communication timeliness, fault-tolerance, and security, while allowing for a ner control of multiplexing of prioritized data (broad