Patent ID: 7733911

Claim:
A method for receiving video content at a receiver, the method comprising: receiving packets from a multicasted group of packets, wherein the multicasted group of packets include data and error-correction information for the data; if packets received without error in the receiving step include less than all the data, whereby some of the data has been lost, hereinafter referred to as lost data, then: sending a message based on identity of at least some of the lost data; receiving a retransmission data via a retransmission triggered by the sent message, wherein the retransmission data includes less than all of the lost data; recovering all of the lost data using information from the packets received without error in the receiving packets step and using the received retransmission data; and buffering received data at the receiver, including the retransmission data, to allow for continuous play of the video content received at the receiver.