An adaptive multi-layer video server adapted to send video packets to clients over a network, comprising: a base layer video packetizer; one or more enhancement layer video packetizers; a packetizing adaptor connected with the base layer video packetizer and the one or more enhancement layer video packetizers, the packetizing adaptor controlling operation of the base layer video packetizer and the one or more enhancement layer video packetizers by discarding particular video packets from being sent to the clients based on client-generated information provided by at least one of the clients back to the packetizing adaptor; and a packet scheduler adapted to send the remaining video packets to the clients; wherein the client-generated information includes a packet loss ratio provided by the at least one of the clients back to the packetizing adaptor; characterized in that sending the remaining video packets to the clients comprises: - send all packets of all layers when the packet loss ratio is low; - send all packets without the enhancement layer packets on disposable slices if the packet loss ratio is increasing but still low; - send all packets without the enhancement layer packets and base layer packets on disposable slices if the packet loss ratio is still increasing; and - send all packets without the enhancement layer packets, base layer packets on disposable slices and enhancement layer packets on non-disposable slices if the packet loss ratio is high. a base layer video packetizer; one or more enhancement layer video packetizers; a packetizing adaptor connected with the base layer video packetizer and the one or more enhancement layer video packetizers, the packetizing adaptor controlling operation of the base layer video packetizer and the one or more enhancement layer video packetizers by discarding particular video packets from being sent to the clients based on client-generated information provided by at least one of the clients back to the packetizing adaptor; and a packet scheduler adapted to send the remaining video packets to the clients; wherein the client-generated information includes a packet loss ratio provided by the at least one of the clients back to the packetizing adaptor; characterized in that sending the remaining video packets to the clients comprises: - send all packets of all layers when the packet loss ratio is low; - send all packets without the enhancement layer packets on disposable slices if the packet loss ratio is increasing but still low; - send all packets without the enhancement layer packets and base layer packets on disposable slices if the packet loss ratio is still increasing; and - send all packets without the enhancement layer packets, base layer packets on disposable slices and enhancement layer packets on non-disposable slices if the packet loss ratio is high. - send all packets of all layers when the packet loss ratio is low; - send all packets without the enhancement layer packets on disposable slices if the packet loss ratio is increasing but still low; - send all packets without the enhancement layer packets and base layer packets on disposable slices if the packet loss ratio is still increasing; and - send all packets without the enhancement layer packets, base layer packets on disposable slices and enhancement layer packets on non-disposable slices if the packet loss ratio is high.